././@PaxHeader 0000000 0000000 0000000 00000000034 00000000000 010212 x ustar 00 28 mtime=1736004678.6552424
pysolar-0.13/ 0000755 0000000 0000024 00000000000 00000000000 011753 5 ustar 00root staff ././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/COPYING 0000644 0000000 0000024 00000104426 00000000000 013015 0 ustar 00root staff GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc.
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
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know their rights.
Developers that use the GNU GPL protect your rights with two steps:
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Some devices are designed to deny users access to install or run
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The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU General Public License.
"Copyright" also means copyright-like laws that apply to other kinds
of
works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed under this
License. Each licensee is addressed as "you". "Licensees" and
"recipients" may be individuals or organizations.
To "modify" a work means to copy from or adapt all or part of the work
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exact copy. The resulting work is called a "modified version" of the
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A "covered work" means either the unmodified Program or a work based
on the Program.
To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy. Propagation includes copying,
distribution (with or without modification), making available to the
public, and in some countries other activities as well.
To "convey" a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through
a computer network, with no transfer of a copy, is not conveying.
An interactive user interface displays "Appropriate Legal Notices"
to the extent that it includes a convenient and prominently visible
feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the
extent that warranties are provided), that licensees may convey the
work under this License, and how to view a copy of this License. If
the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.
1. Source Code.
The "source code" for a work means the preferred form of the work
for making modifications to it. "Object code" means any non-source
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A "Standard Interface" means an interface that either is an official
standard defined by a recognized standards body, or, in the case of
interfaces specified for a particular programming language, one that
is widely used among developers working in that language.
The "System Libraries" of an executable work include anything, other
than the work as a whole, that (a) is included in the normal form of
packaging a Major Component, but which is not part of that Major
Component, and (b) serves only to enable use of the work with that
Major Component, or to implement a Standard Interface for which an
implementation is available to the public in source code form. A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
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produce the work, or an object code interpreter used to run it.
The "Corresponding Source" for a work in object code form means all
the source code needed to generate, install, and (for an executable
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control those activities. However, it does not include the work's
System Libraries, or general-purpose tools or generally available free
programs which are used unmodified in performing those activities but
which are not part of the work. For example, Corresponding Source
includes interface definition files associated with source files for
the work, and the source code for shared libraries and dynamically
linked subprograms that the work is specifically designed to require,
such as by intimate data communication or control flow between those
subprograms and other parts of the work.
The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding
Source.
The Corresponding Source for a work in source code form is that
same work.
2. Basic Permissions.
All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met. This License explicitly affirms your unlimited
permission to run the unmodified Program. The output from running a
covered work is covered by this License only if the output, given its
content, constitutes a covered work. This License acknowledges your
rights of fair use or other equivalent, as provided by copyright law.
You may make, run and propagate covered works that you do not
convey, without conditions so long as your license otherwise remains
in force. You may convey covered works to others for the sole purpose
of having them make modifications exclusively for you, or provide you
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the terms of this License in conveying all material for which you do
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for you must do so exclusively on your behalf, under your direction
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Conveying under any other circumstances is permitted solely under
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No covered work shall be deemed part of an effective technological
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similar laws prohibiting or restricting circumvention of such
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When you convey a covered work, you waive any legal power to forbid
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4. Conveying Verbatim Copies.
You may convey verbatim copies of the Program's source code as you
receive it, in any medium, provided that you conspicuously and
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keep intact all notices stating that this License and any
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keep intact all notices of the absence of any warranty; and give all
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You may charge any price or no price for each copy that you convey,
and you may offer support or warranty protection for a fee.
5. Conveying Modified Source Versions.
You may convey a work based on the Program, or the modifications to
produce it from the Program, in the form of source code under the
terms of section 4, provided that you also meet all of these conditions:
a) The work must carry prominent notices stating that you modified
it, and giving a relevant date.
b) The work must carry prominent notices stating that it is
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7. This requirement modifies the requirement in section 4 to
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c) You must license the entire work, as a whole, under this
License to anyone who comes into possession of a copy. This
License will therefore apply, along with any applicable section 7
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work need not make them do so.
A compilation of a covered work with other separate and independent
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in or on a volume of a storage or distribution medium, is called an
"aggregate" if the compilation and its resulting copyright are not
used to limit the access or legal rights of the compilation's users
beyond what the individual works permit. Inclusion of a covered work
in an aggregate does not cause this License to apply to the other
parts of the aggregate.
6. Conveying Non-Source Forms.
You may convey a covered work in object code form under the terms
of sections 4 and 5, provided that you also convey the
machine-readable Corresponding Source under the terms of this License,
in one of these ways:
a) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by the
Corresponding Source fixed on a durable physical medium
customarily used for software interchange.
b) Convey the object code in, or embodied in, a physical product
(including a physical distribution medium), accompanied by a
written offer, valid for at least three years and valid for as
long as you offer spare parts or customer support for that product
model, to give anyone who possesses the object code either (1) a
copy of the Corresponding Source for all the software in the
product that is covered by this License, on a durable physical
medium customarily used for software interchange, for a price no
more than your reasonable cost of physically performing this
conveying of source, or (2) access to copy the
Corresponding Source from a network server at no charge.
c) Convey individual copies of the object code with a copy of the
written offer to provide the Corresponding Source. This
alternative is allowed only occasionally and noncommercially, and
only if you received the object code with such an offer, in accord
with subsection 6b.
d) Convey the object code by offering access from a designated
place (gratis or for a charge), and offer equivalent access to the
Corresponding Source in the same way through the same place at no
further charge. You need not require recipients to copy the
Corresponding Source along with the object code. If the place to
copy the object code is a network server, the Corresponding Source
may be on a different server (operated by you or a third party)
that supports equivalent copying facilities, provided you maintain
clear directions next to the object code saying where to find the
Corresponding Source. Regardless of what server hosts the
Corresponding Source, you remain obligated to ensure that it is
available for as long as needed to satisfy these requirements.
e) Convey the object code using peer-to-peer transmission, provided
you inform other peers where the object code and Corresponding
Source of the work are being offered to the general public at no
charge under subsection 6d.
A separable portion of the object code, whose source code is excluded
from the Corresponding Source as a System Library, need not be
included in conveying the object code work.
A "User Product" is either (1) a "consumer product", which means any
tangible personal property which is normally used for personal, family,
or household purposes, or (2) anything designed or sold for
incorporation
into a dwelling. In determining whether a product is a consumer
product,
doubtful cases shall be resolved in favor of coverage. For a particular
product received by a particular user, "normally used" refers to a
typical or common use of that class of product, regardless of the status
of the particular user or of the way in which the particular user
actually uses, or expects or is expected to use, the product. A product
is a consumer product regardless of whether the product has substantial
commercial, industrial or non-consumer uses, unless such uses represent
the only significant mode of use of the product.
"Installation Information" for a User Product means any methods,
procedures, authorization keys, or other information required to install
and execute modified versions of a covered work in that User Product
from
a modified version of its Corresponding Source. The information must
suffice to ensure that the continued functioning of the modified object
code is in no case prevented or interfered with solely because
modification has been made.
If you convey an object code work under this section in, or with, or
specifically for use in, a User Product, and the conveying occurs as
part of a transaction in which the right of possession and use of the
User Product is transferred to the recipient in perpetuity or for a
fixed term (regardless of how the transaction is characterized), the
Corresponding Source conveyed under this section must be accompanied
by the Installation Information. But this requirement does not apply
if neither you nor any third party retains the ability to install
modified object code on the User Product (for example, the work has
been installed in ROM).
The requirement to provide Installation Information does not include a
requirement to continue to provide support service, warranty, or updates
for a work that has been modified or installed by the recipient, or for
the User Product in which it has been modified or installed. Access to
a
network may be denied when the modification itself materially and
adversely affects the operation of the network or violates the rules and
protocols for communication across the network.
Corresponding Source conveyed, and Installation Information provided,
in accord with this section must be in a format that is publicly
documented (and with an implementation available to the public in
source code form), and must require no special password or key for
unpacking, reading or copying.
7. Additional Terms.
"Additional permissions" are terms that supplement the terms of this
License by making exceptions from one or more of its conditions.
Additional permissions that are applicable to the entire Program shall
be treated as though they were included in this License, to the extent
that they are valid under applicable law. If additional permissions
apply only to part of the Program, that part may be used separately
under those permissions, but the entire Program remains governed by
this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option
remove any additional permissions from that copy, or from any part of
it. (Additional permissions may be written to require their own
removal in certain cases when you modify the work.) You may place
additional permissions on material, added by you to a covered work,
for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you
add to a covered work, you may (if authorized by the copyright holders
of
that material) supplement the terms of this License with terms:
a) Disclaiming warranty or limiting liability differently from the
terms of sections 15 and 16 of this License; or
b) Requiring preservation of specified reasonable legal notices or
author attributions in that material or in the Appropriate Legal
Notices displayed by works containing it; or
c) Prohibiting misrepresentation of the origin of that material, or
requiring that modified versions of such material be marked in
reasonable ways as different from the original version; or
d) Limiting the use for publicity purposes of names of licensors or
authors of the material; or
e) Declining to grant rights under trademark law for use of some
trade names, trademarks, or service marks; or
f) Requiring indemnification of licensors and authors of that
material by anyone who conveys the material (or modified versions of
it) with contractual assumptions of liability to the recipient, for
any liability that these contractual assumptions directly impose on
those licensors and authors.
All other non-permissive additional terms are considered "further
restrictions" within the meaning of section 10. If the Program as you
received it, or any part of it, contains a notice stating that it is
governed by this License along with a term that is a further
restriction, you may remove that term. If a license document contains
a further restriction but permits relicensing or conveying under this
License, you may add to a covered work material governed by the terms
of that license document, provided that the further restriction does
not survive such relicensing or conveying.
If you add terms to a covered work in accord with this section, you
must place, in the relevant source files, a statement of the
additional terms that apply to those files, or a notice indicating
where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the
form of a separately written license, or stated as exceptions;
the above requirements apply either way.
8. Termination.
You may not propagate or modify a covered work except as expressly
provided under this License. Any attempt otherwise to propagate or
modify it is void, and will automatically terminate your rights under
this License (including any patent licenses granted under the third
paragraph of section 11).
However, if you cease all violation of this License, then your
license from a particular copyright holder is reinstated (a)
provisionally, unless and until the copyright holder explicitly and
finally terminates your license, and (b) permanently, if the copyright
holder fails to notify you of the violation by some reasonable means
prior to 60 days after the cessation.
Moreover, your license from a particular copyright holder is
reinstated permanently if the copyright holder notifies you of the
violation by some reasonable means, this is the first time you have
received notice of violation of this License (for any work) from that
copyright holder, and you cure the violation prior to 30 days after
your receipt of the notice.
Termination of your rights under this section does not terminate the
licenses of parties who have received copies or rights from you under
this License. If your rights have been terminated and not permanently
reinstated, you do not qualify to receive new licenses for the same
material under section 10.
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or
run a copy of the Program. Ancillary propagation of a covered work
occurring solely as a consequence of using peer-to-peer transmission
to receive a copy likewise does not require acceptance. However,
nothing other than this License grants you permission to propagate or
modify any covered work. These actions infringe copyright if you do
not accept this License. Therefore, by modifying or propagating a
covered work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically
receives a license from the original licensors, to run, modify and
propagate that work, subject to this License. You are not responsible
for enforcing compliance by third parties with this License.
An "entity transaction" is a transaction transferring control of an
organization, or substantially all assets of one, or subdividing an
organization, or merging organizations. If propagation of a covered
work results from an entity transaction, each party to that
transaction who receives a copy of the work also receives whatever
licenses to the work the party's predecessor in interest had or could
give under the previous paragraph, plus a right to possession of the
Corresponding Source of the work from the predecessor in interest, if
the predecessor has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the
rights granted or affirmed under this License. For example, you may
not impose a license fee, royalty, or other charge for exercise of
rights granted under this License, and you may not initiate litigation
(including a cross-claim or counterclaim in a lawsuit) alleging that
any patent claim is infringed by making, using, selling, offering for
sale, or importing the Program or any portion of it.
11. Patents.
A "contributor" is a copyright holder who authorizes use under this
License of the Program or a work on which the Program is based. The
work thus licensed is called the contributor's "contributor version".
A contributor's "essential patent claims" are all patent claims
owned or controlled by the contributor, whether already acquired or
hereafter acquired, that would be infringed by some manner, permitted
by this License, of making, using, or selling its contributor version,
but do not include claims that would be infringed only as a
consequence of further modification of the contributor version. For
purposes of this definition, "control" includes the right to grant
patent sublicenses in a manner consistent with the requirements of
this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free
patent license under the contributor's essential patent claims, to
make, use, sell, offer for sale, import and otherwise run, modify and
propagate the contents of its contributor version.
In the following three paragraphs, a "patent license" is any express
agreement or commitment, however denominated, not to enforce a patent
(such as an express permission to practice a patent or covenant not to
sue for patent infringement). To "grant" such a patent license to a
party means to make such an agreement or commitment not to enforce a
patent against the party.
If you convey a covered work, knowingly relying on a patent license,
and the Corresponding Source of the work is not available for anyone
to copy, free of charge and under the terms of this License, through a
publicly available network server or other readily accessible means,
then you must either (1) cause the Corresponding Source to be so
available, or (2) arrange to deprive yourself of the benefit of the
patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent
license to downstream recipients. "Knowingly relying" means you have
actual knowledge that, but for the patent license, your conveying the
covered work in a country, or your recipient's use of the covered work
in a country, would infringe one or more identifiable patents in that
country that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or
arrangement, you convey, or propagate by procuring conveyance of, a
covered work, and grant a patent license to some of the parties
receiving the covered work authorizing them to use, propagate, modify
or convey a specific copy of the covered work, then the patent license
you grant is automatically extended to all recipients of the covered
work and works based on it.
A patent license is "discriminatory" if it does not include within
the scope of its coverage, prohibits the exercise of, or is
conditioned on the non-exercise of one or more of the rights that are
specifically granted under this License. You may not convey a covered
work if you are a party to an arrangement with a third party that is
in the business of distributing software, under which you make payment
to the third party based on the extent of your activity of conveying
the work, and under which the third party grants, to any of the
parties who would receive the covered work from you, a discriminatory
patent license (a) in connection with copies of the covered work
conveyed by you (or copies made from those copies), or (b) primarily
for and in connection with specific products or compilations that
contain the covered work, unless you entered into that arrangement,
or that patent license was granted, prior to 28 March 2007.
Nothing in this License shall be construed as excluding or limiting
any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
12. No Surrender of Others' Freedom.
If conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot convey a
covered work so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may
not convey it at all. For example, if you agree to terms that obligate
you
to collect a royalty for further conveying from those to whom you convey
the Program, the only way you could satisfy both those terms and this
License would be to refrain entirely from conveying the Program.
13. Use with the GNU Affero General Public License.
Notwithstanding any other provision of this License, you have
permission to link or combine any covered work with a work licensed
under version 3 of the GNU Affero General Public License into a single
combined work, and to convey the resulting work. The terms of this
License will continue to apply to the part which is the covered work,
but the special requirements of the GNU Affero General Public License,
section 13, concerning interaction through a network will apply to the
combination as such.
14. Revised Versions of this License.
The Free Software Foundation may publish revised and/or new versions
of
the GNU General Public License from time to time. Such new versions
will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the
Program specifies that a certain numbered version of the GNU General
Public License "or any later version" applies to it, you have the
option of following the terms and conditions either of that numbered
version or of any later version published by the Free Software
Foundation. If the Program does not specify a version number of the
GNU General Public License, you may choose any version ever published
by the Free Software Foundation.
If the Program specifies that a proxy can decide which future
versions of the GNU General Public License can be used, that proxy's
public statement of acceptance of a version permanently authorizes you
to choose that version for the Program.
Later license versions may give you additional or different
permissions. However, no additional obligations are imposed on any
author or copyright holder as a result of your choosing to follow a
later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING
ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS
OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR
THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY
OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these
terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
Copyright (C)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
Copyright (C)
This program comes with ABSOLUTELY NO WARRANTY; for details type
`show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the
appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or
school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL,
see
.
The GNU General Public License does not permit incorporating your
program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications
with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
.
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/MANIFEST.in 0000644 0000000 0000024 00000000015 00000000000 013505 0 ustar 00root staff include *.py
././@PaxHeader 0000000 0000000 0000000 00000000033 00000000000 010211 x ustar 00 27 mtime=1736004678.655125
pysolar-0.13/PKG-INFO 0000644 0000000 0000024 00000000521 00000000000 013046 0 ustar 00root staff Metadata-Version: 2.1
Name: pysolar
Version: 0.13
Summary: Collection of Python libraries for simulating the irradiation of any point on earth by the sun
Home-page: http://pysolar.org
Author: Brandon Stafford
Author-email: brandon@pingswept.org
License: GNU General Public License (GPL)
Platform: UNKNOWN
License-File: COPYING
UNKNOWN
././@PaxHeader 0000000 0000000 0000000 00000000033 00000000000 010211 x ustar 00 27 mtime=1736004678.653273
pysolar-0.13/pysolar/ 0000755 0000000 0000024 00000000000 00000000000 013444 5 ustar 00root staff ././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/__init__.py 0000644 0000000 0000024 00000000302 00000000000 015550 0 ustar 00root staff from . import \
constants, \
solartime as stime, \
radiation, \
util, \
solar, \
numeric
def use_numpy():
numeric.use_numpy()
def use_math():
numeric.use_math() ././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/__init__.pyi 0000644 0000000 0000024 00000000042 00000000000 015722 0 ustar 00root staff # Stubs for pysolar (Python 3.6)
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/constants.py 0000644 0000000 0000024 00000030774 00000000000 016045 0 ustar 00root staff # Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""This file is consists of numerical constants for calculating corrections,
such as the wiggling ("nutation") of the axis of the earth. It also includes
functions for building dictionaries of polynomial functions for rapid
calculation of corrections.
Most of the constants come from a 2005 paper by Reda and Andreas:
I. Reda and A. Andreas, "Solar Position Algorithm for Solar Radiation
Applications," National Renewable Energy Laboratory, NREL/TP-560-34302,
revised November 2005.
http://www.osti.gov/bridge/servlets/purl/15003974-iP3z6k/native/15003974.PDF
However, it seems that Reda and Andreas took the bulk of the constants
(L0, etc.) from Pierre Bretagnon and Gerard Francou's Variations Seculaires
des Orbites Planetaires, or VSOP87:
http://en.wikipedia.org/wiki/Secular_variations_of_the_planetary_orbits#VSOP87
See also ftp://ftp.imcce.fr/pub/ephem/planets/vsop87/VSOP87D.ear
"""
aberration_coeffs = None
def get_aberration_coeffs():
"""This function builds a dictionary of polynomial functions from a list of
coefficients, so that the functions can be called by name. This is used in
calculating nutation.
"""
global aberration_coeffs
if aberration_coeffs == None :
aberration_coeffs = dict \
(
(name, (lambda a, b, c, d: lambda x: a + b * x + c * x ** 2 + (x ** 3) / d)(*coeffs))
for name, coeffs in
(
('ArgumentOfLatitudeOfMoon', (93.27191, 483202.017538, -0.0036825, 327270.0)),
('LongitudeOfAscendingNode', (125.04452, -1934.136261, 0.0020708, 450000.0)),
('MeanElongationOfMoon', (297.85036, 445267.111480, -0.0019142, 189474.0)),
('MeanAnomalyOfMoon', (134.96298, 477198.867398, 0.0086972, 56250.0)),
('MeanAnomalyOfSun', (357.52772, 35999.050340, -0.0001603, -300000.0)),
)
)
#end if
return \
aberration_coeffs
#end get_aberration_coeffs
earth_radius = 6378140.0 # meters
earth_axis_inclination = 23.45 # degrees
seconds_per_day = 86400
standard_pressure = 101325.00 # pascals
standard_temperature = 288.15 # kelvin
celsius_offset = 273.15 # subtract from kelvin to get deg C, add to deg C to get kelvin
earth_temperature_lapse_rate = -0.0065 # change in temperature with height, kelvin/metre
air_gas_constant = 8.31432 # N*m/s^2
earth_gravity = 9.80665 # m/s^2 or N/kg
earth_atmosphere_molar_mass = 0.0289644 # kg/mol
aberration_sin_terms = \
[
(0,0,0,0,1),
(-2,0,0,2,2),
(0,0,0,2,2),
(0,0,0,0,2),
(0,1,0,0,0),
(0,0,1,0,0),
(-2,1,0,2,2),
(0,0,0,2,1),
(0,0,1,2,2),
(-2,-1,0,2,2),
(-2,0,1,0,0),
(-2,0,0,2,1),
(0,0,-1,2,2),
(2,0,0,0,0),
(0,0,1,0,1),
(2,0,-1,2,2),
(0,0,-1,0,1),
(0,0,1,2,1),
(-2,0,2,0,0),
(0,0,-2,2,1),
(2,0,0,2,2),
(0,0,2,2,2),
(0,0,2,0,0),
(-2,0,1,2,2),
(0,0,0,2,0),
(-2,0,0,2,0),
(0,0,-1,2,1),
(0,2,0,0,0),
(2,0,-1,0,1),
(-2,2,0,2,2),
(0,1,0,0,1),
(-2,0,1,0,1),
(0,-1,0,0,1),
(0,0,2,-2,0),
(2,0,-1,2,1),
(2,0,1,2,2),
(0,1,0,2,2),
(-2,1,1,0,0),
(0,-1,0,2,2),
(2,0,0,2,1),
(2,0,1,0,0),
(-2,0,2,2,2),
(-2,0,1,2,1),
(2,0,-2,0,1),
(2,0,0,0,1),
(0,-1,1,0,0),
(-2,-1,0,2,1),
(-2,0,0,0,1),
(0,0,2,2,1),
(-2,0,2,0,1),
(-2,1,0,2,1),
(0,0,1,-2,0),
(-1,0,1,0,0),
(-2,1,0,0,0),
(1,0,0,0,0),
(0,0,1,2,0),
(0,0,-2,2,2),
(-1,-1,1,0,0),
(0,1,1,0,0),
(0,-1,1,2,2),
(2,-1,-1,2,2),
(0,0,3,2,2),
(2,-1,0,2,2),
]
nutation_coefficients = \
[
(-171996,-174.2,92025,8.9),
(-13187,-1.6,5736,-3.1),
(-2274,-0.2,977,-0.5),
(2062,0.2,-895,0.5),
(1426,-3.4,54,-0.1),
(712,0.1,-7,0),
(-517,1.2,224,-0.6),
(-386,-0.4,200,0),
(-301,0,129,-0.1),
(217,-0.5,-95,0.3),
(-158,0,0,0),
(129,0.1,-70,0),
(123,0,-53,0),
(63,0,0,0),
(63,0.1,-33,0),
(-59,0,26,0),
(-58,-0.1,32,0),
(-51,0,27,0),
(48,0,0,0),
(46,0,-24,0),
(-38,0,16,0),
(-31,0,13,0),
(29,0,0,0),
(29,0,-12,0),
(26,0,0,0),
(-22,0,0,0),
(21,0,-10,0),
(17,-0.1,0,0),
(16,0,-8,0),
(-16,0.1,7,0),
(-15,0,9,0),
(-13,0,7,0),
(-12,0,6,0),
(11,0,0,0),
(-10,0,5,0),
(-8,0,3,0),
(7,0,-3,0),
(-7,0,0,0),
(-7,0,3,0),
(-7,0,3,0),
(6,0,0,0),
(6,0,-3,0),
(6,0,-3,0),
(-6,0,3,0),
(-6,0,3,0),
(5,0,0,0),
(-5,0,3,0),
(-5,0,3,0),
(-5,0,3,0),
(4,0,0,0),
(4,0,0,0),
(4,0,0,0),
(-4,0,0,0),
(-4,0,0,0),
(-4,0,0,0),
(3,0,0,0),
(-3,0,0,0),
(-3,0,0,0),
(-3,0,0,0),
(-3,0,0,0),
(-3,0,0,0),
(-3,0,0,0),
(-3,0,0,0),
]
heliocentric_longitude_coeffs = \
[
[ # L0
(175347046.0,0,0),
(3341656.0,4.6692568,6283.07585),
(34894.0,4.6261,12566.1517),
(3497.0,2.7441,5753.3849),
(3418.0,2.8289,3.5231),
(3136.0,3.6277,77713.7715),
(2676.0,4.4181,7860.4194),
(2343.0,6.1352,3930.2097),
(1324.0,0.7425,11506.7698),
(1273.0,2.0371,529.691),
(1199.0,1.1096,1577.3435),
(990,5.233,5884.927),
(902,2.045,26.298),
(857,3.508,398.149),
(780,1.179,5223.694),
(753,2.533,5507.553),
(505,4.583,18849.228),
(492,4.205,775.523),
(357,2.92,0.067),
(317,5.849,11790.629),
(284,1.899,796.298),
(271,0.315,10977.079),
(243,0.345,5486.778),
(206,4.806,2544.314),
(205,1.869,5573.143),
(202,2.458,6069.777),
(156,0.833,213.299),
(132,3.411,2942.463),
(126,1.083,20.775),
(115,0.645,0.98),
(103,0.636,4694.003),
(102,0.976,15720.839),
(102,4.267,7.114),
(99,6.21,2146.17),
(98,0.68,155.42),
(86,5.98,161000.69),
(85,1.3,6275.96),
(85,3.67,71430.7),
(80,1.81,17260.15),
(79,3.04,12036.46),
(75,1.76,5088.63),
(74,3.5,3154.69),
(74,4.68,801.82),
(70,0.83,9437.76),
(62,3.98,8827.39),
(61,1.82,7084.9),
(57,2.78,6286.6),
(56,4.39,14143.5),
(56,3.47,6279.55),
(52,0.19,12139.55),
(52,1.33,1748.02),
(51,0.28,5856.48),
(49,0.49,1194.45),
(41,5.37,8429.24),
(41,2.4,19651.05),
(39,6.17,10447.39),
(37,6.04,10213.29),
(37,2.57,1059.38),
(36,1.71,2352.87),
(36,1.78,6812.77),
(33,0.59,17789.85),
(30,0.44,83996.85),
(30,2.74,1349.87),
(25,3.16,4690.48)
],
[ # L1
(628331966747.0,0,0),
(206059.0,2.678235,6283.07585),
(4303.0,2.6351,12566.1517),
(425.0,1.59,3.523),
(119.0,5.796,26.298),
(109.0,2.966,1577.344),
(93,2.59,18849.23),
(72,1.14,529.69),
(68,1.87,398.15),
(67,4.41,5507.55),
(59,2.89,5223.69),
(56,2.17,155.42),
(45,0.4,796.3),
(36,0.47,775.52),
(29,2.65,7.11),
(21,5.34,0.98),
(19,1.85,5486.78),
(19,4.97,213.3),
(17,2.99,6275.96),
(16,0.03,2544.31),
(16,1.43,2146.17),
(15,1.21,10977.08),
(12,2.83,1748.02),
(12,3.26,5088.63),
(12,5.27,1194.45),
(12,2.08,4694),
(11,0.77,553.57),
(10,1.3,6286.6),
(10,4.24,1349.87),
(9,2.7,242.73),
(9,5.64,951.72),
(8,5.3,2352.87),
(6,2.65,9437.76),
(6,4.67,4690.48)
],
[ # L2
(52919.0,0,0),
(8720.0,1.0721,6283.0758),
(309.0,0.867,12566.152),
(27,0.05,3.52),
(16,5.19,26.3),
(16,3.68,155.42),
(10,0.76,18849.23),
(9,2.06,77713.77),
(7,0.83,775.52),
(5,4.66,1577.34),
(4,1.03,7.11),
(4,3.44,5573.14),
(3,5.14,796.3),
(3,6.05,5507.55),
(3,1.19,242.73),
(3,6.12,529.69),
(3,0.31,398.15),
(3,2.28,553.57),
(2,4.38,5223.69),
(2,3.75,0.98)
],
[ # L3
(289.0,5.844,6283.076),
(35,0,0),
(17,5.49,12566.15),
(3,5.2,155.42),
(1,4.72,3.52),
(1,5.3,18849.23),
(1,5.97,242.73)
],
[ # L4
(114.0,3.142,0),
(8,4.13,6283.08),
(1,3.84,12566.15)
],
[ # L5
(1,3.14,0)
],
]
heliocentric_latitude_coeffs = \
[
[ # B0
(280.0,3.199,84334.662),
(102.0,5.422,5507.553),
(80,3.88,5223.69),
(44,3.7,2352.87),
(32,4,1577.34)
],
[ # B1
(9,3.9,5507.55),
(6,1.73,5223.69)
],
]
sun_earth_distance_coeffs = \
[
[ # R0
(100013989.0,0,0),
(1670700.0,3.0984635,6283.07585),
(13956.0,3.05525,12566.1517),
(3084.0,5.1985,77713.7715),
(1628.0,1.1739,5753.3849),
(1576.0,2.8469,7860.4194),
(925.0,5.453,11506.77),
(542.0,4.564,3930.21),
(472.0,3.661,5884.927),
(346.0,0.964,5507.553),
(329.0,5.9,5223.694),
(307.0,0.299,5573.143),
(243.0,4.273,11790.629),
(212.0,5.847,1577.344),
(186.0,5.022,10977.079),
(175.0,3.012,18849.228),
(110.0,5.055,5486.778),
(98,0.89,6069.78),
(86,5.69,15720.84),
(86,1.27,161000.69),
(65,0.27,17260.15),
(63,0.92,529.69),
(57,2.01,83996.85),
(56,5.24,71430.7),
(49,3.25,2544.31),
(47,2.58,775.52),
(45,5.54,9437.76),
(43,6.01,6275.96),
(39,5.36,4694),
(38,2.39,8827.39),
(37,0.83,19651.05),
(37,4.9,12139.55),
(36,1.67,12036.46),
(35,1.84,2942.46),
(33,0.24,7084.9),
(32,0.18,5088.63),
(32,1.78,398.15),
(28,1.21,6286.6),
(28,1.9,6279.55),
(26,4.59,10447.39)
],
[ # R1
(103019.0,1.10749,6283.07585),
(1721.0,1.0644,12566.1517),
(702.0,3.142,0),
(32,1.02,18849.23),
(31,2.84,5507.55),
(25,1.32,5223.69),
(18,1.42,1577.34),
(10,5.91,10977.08),
(9,1.42,6275.96),
(9,0.27,5486.78)
],
[ # R2
(4359.0,5.7846,6283.0758),
(124.0,5.579,12566.152),
(12,3.14,0),
(9,3.63,77713.77),
(6,1.87,5573.14),
(3,5.47,18849.23)
],
[ # R3
(145.0,4.273,6283.076),
(7,3.92,12566.15),
],
[ # R4
(4,2.56,6283.08)
],
]
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/constants.pyi 0000644 0000000 0000024 00000001431 00000000000 016202 0 ustar 00root staff # Stubs for pysolar.constants (Python 3.6)
from typing import Dict, List, Tuple
aberration_coeffs: Dict[str,float]
def get_aberration_coeffs() -> Dict[str,float]: ...
earth_radius: float
earth_axis_inclination: float
seconds_per_day: int
standard_pressure: float
standard_temperature: float
celsius_offset: float
earth_temperature_lapse_rate: float
air_gas_constant: float
earth_gravity: float
earth_atmosphere_molar_mass: float
aberration_sin_terms: List[Tuple[float, float, float, float, float]]
nutation_coefficients: List[Tuple[float, float, float, float]]
heliocentric_longitude_coeffs: List[List[Tuple[float, float, float]]]
heliocentric_latitude_coeffs: List[List[Tuple[float, float, float]]]
sun_earth_distance_coeffs: List[List[Tuple[float, float, float]]]
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/elevation.py 0000644 0000000 0000024 00000005733 00000000000 016014 0 ustar 00root staff # Copyright Sean T. Hammond
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""Various elevation-related calculations
"""
import warnings
from .constants import \
standard_pressure, \
standard_temperature, \
earth_temperature_lapse_rate, \
air_gas_constant, \
earth_gravity, \
earth_atmosphere_molar_mass
def get_pressure_with_elevation(h, Ps=standard_pressure, Ts=standard_temperature, Tl=earth_temperature_lapse_rate, Hb=0.0, R=air_gas_constant, g=earth_gravity, M=earth_atmosphere_molar_mass):
"This function returns an estimate of the pressure in pascals as a function of\n" \
" elevation above sea level.\n" \
"NOTES:\n" \
" * This equation is only accurate up to 11,000 meters\n" \
" * results might be odd for elevations below 0 (sea level), like Dead Sea.\n" \
"h=elevation relative to sea level (m)\n" \
"Ps= static pressure (pascals)\n" \
"Ts= temperature (kelvin)\n" \
"Tl= temperature lapse rate (kelvin/meter)\n" \
"Hb= height at the bottom of the layer\n" \
"R= universal gas constant for air\n" \
"g= gravitational acceleration\n" \
"M= Molar mass of atmosphere\n" \
"P = Ps * (Ts / ((Ts + Tl) * (h - Hb))) ^ ((g * M)/(R * Tl))\n" \
"returns pressure in pascals\n"
if h > 11000.0 :
warnings.warn \
(
"Elevation used exceeds the recommended maximum elevation for this function (11,000m)\n"
)
#end if
return \
Ps * (Ts / (Ts + Tl * (h - Hb))) ** ((g * M) / (R * Tl))
#end get_pressure_with_elevation
def get_temperature_with_elevation(h, Ts=standard_temperature, Tl=earth_temperature_lapse_rate):
"This function returns an estimate of temperature as a function above sea level.\n" \
"NOTES:\n" \
" * This equation is only accurate up to 11,000 meters\n" \
" * results might be odd for elevations below 0 (sea level), like Dead Sea.\n" \
"Ts= temperature (kelvin)\n" \
"Tl= temperature lapse rate (kelvin/meter)\n" \
"returns temp in kelvin\n"
return \
Ts + h *Tl
#end get_temperature_with_elevation
def elevation_test():
print("Elevation(m) Pressure(Pa) Temperature(K)")
h = 0
for _ in range(11):
P = get_pressure_with_elevation(h)
T = get_temperature_with_elevation(h)
print("%i %i %i" % (h, P, T))
h += 1000
#end for
#end elevation_test
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/elevation.pyi 0000644 0000000 0000024 00000000521 00000000000 016153 0 ustar 00root staff # Stubs for pysolar.elevation (Python 3.6)
def get_pressure_with_elevation(h:float, Ps:float = ..., Ts:float = ..., Tl:float = ..., Hb:float = ..., R:float = ..., g:float = ..., M:float = ...) -> float: ...
def get_temperature_with_elevation(h:float, Ts:float = ..., Tl:float = ...) -> float: ...
def elevation_test() -> None: ...
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/numeric.py 0000644 0000000 0000024 00000010066 00000000000 015463 0 ustar 00root staff
# Copyright François Steinmetz
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""
Import math functions from either numpy (in order to vectorize operations) or
builtins math module.
By default, use numpy when available.
To force builtins math module usage when numpy is available:
import pysolar
pysolar.use_math()
"""
from math import degrees, cos, sin, radians, tan, pi
from math import acos, atan, asin, atan2, exp, e
current_mod = 'math'
def globals_import_from(module, name, name_as):
"""
Does "from import as " (globally)
"""
module = __import__(module, fromlist=[name])
globals()[name_as] = getattr(module, name)
def where_math(condition, x, y):
""" scalar version of numpy.where """
if condition:
return x
else:
return y
where = where_math
def tm_yday_math(d):
return d.utctimetuple().tm_yday
tm_yday = tm_yday_math
def tm_yday_numpy(d):
dd = numpy.array(d, dtype='datetime64[D]')
dy = numpy.array(d, dtype='datetime64[Y]')
return (dd - dy).astype('int') + 1
def tm_hour_math(d):
return d.utctimetuple().tm_hour
tm_hour = tm_hour_math
def tm_hour_numpy(d):
dh = numpy.array(d, dtype='datetime64[h]')
dd = numpy.array(d, dtype='datetime64[D]')
return (dh - dd).astype('int')
def tm_min_math(d):
return d.utctimetuple().tm_min
tm_min = tm_min_math
def tm_min_numpy(d):
dm = numpy.array(d, dtype='datetime64[m]')
dh = numpy.array(d, dtype='datetime64[h]')
return (dm - dh).astype('int')
def use_numpy():
"""
Import required functions/constants from numpy
"""
globals_import_from('numpy', 'degrees', 'degrees')
globals_import_from('numpy', 'cos', 'cos')
globals_import_from('numpy', 'sin', 'sin')
globals_import_from('numpy', 'radians', 'radians')
globals_import_from('numpy', 'tan', 'tan')
globals_import_from('numpy', 'pi', 'pi')
globals_import_from('numpy', 'arccos', 'acos')
globals_import_from('numpy', 'arctan', 'atan')
globals_import_from('numpy', 'arcsin', 'asin')
globals_import_from('numpy', 'arctan2', 'atan2')
globals_import_from('numpy', 'exp', 'exp')
globals_import_from('numpy', 'e', 'e')
globals_import_from('numpy', 'where', 'where')
globals()['tm_yday'] = tm_yday_numpy
globals()['tm_hour'] = tm_hour_numpy
globals()['tm_min'] = tm_min_numpy
globals()['current_mod'] = 'numpy'
def use_math():
"""
Import required functions/constants from builtins math module
"""
globals_import_from('math', 'degrees', 'degrees')
globals_import_from('math', 'cos', 'cos')
globals_import_from('math', 'sin', 'sin')
globals_import_from('math', 'radians', 'radians')
globals_import_from('math', 'tan', 'tan')
globals_import_from('math', 'pi', 'pi')
globals_import_from('math', 'acos', 'acos')
globals_import_from('math', 'atan', 'atan')
globals_import_from('math', 'asin', 'asin')
globals_import_from('math', 'atan2', 'atan2')
globals_import_from('math', 'exp', 'exp')
globals_import_from('math', 'e', 'e')
globals()['where'] = where
globals()['tm_yday'] = tm_yday_math
globals()['tm_hour'] = tm_hour_math
globals()['tm_min'] = tm_min_math
globals()['current_mod'] = 'math'
try:
import numpy
use_numpy()
except ImportError:
pass
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/radiation.py 0000644 0000000 0000024 00000003400 00000000000 015765 0 ustar 00root staff # Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""Calculate different kinds of radiation components via default values
"""
from . import numeric as math
def get_air_mass_ratio(altitude_deg):
# from Masters, p. 412
try :
result = 1 / math.sin(math.radians(altitude_deg))
except ZeroDivisionError :
result = float("inf")
#end try
return result
#end get_air_mass_ratio
def get_apparent_extraterrestrial_flux(day):
# from Masters, p. 412
return 1160 + (75 * math.sin(2 * math.pi / 365 * (day - 275)))
#end get_apparent_extraterrestrial
def get_optical_depth(day):
# from Masters, p. 412
return 0.174 + (0.035 * math.sin(2 * math.pi / 365 * (day - 100)))
#end get_optical_depth
def get_radiation_direct(when, altitude_deg):
# from Masters, p. 412
is_daytime = (altitude_deg > 0)
day = math.tm_yday(when)
flux = get_apparent_extraterrestrial_flux(day)
optical_depth = get_optical_depth(day)
air_mass_ratio = get_air_mass_ratio(altitude_deg)
return flux * math.exp(-1 * optical_depth * air_mass_ratio) * is_daytime
#end get_radiation_direct
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/radiation.pyi 0000644 0000000 0000024 00000000500 00000000000 016134 0 ustar 00root staff # Stubs for pysolar.radiation (Python 3.6)
import datetime
def get_air_mass_ratio(altitude_deg:float) -> float: ...
def get_apparent_extraterrestrial_flux(day:float) -> float: ...
def get_optical_depth(day:float) -> float: ...
def get_radiation_direct(when:datetime.datetime, altitude_deg:float) -> float: ...
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/rest.py 0000644 0000000 0000024 00000035136 00000000000 015003 0 ustar 00root staff # Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
# Disable linting as this is a work in progress
# flake8: noqa
from . import numeric as math
from .constants import standard_pressure
# single-scattering albedo used to calculate aerosol scattering transmittance;
# not used for sky or ground albedo for backscattering estimate
albedo = {}
albedo["high-frequency"] = 0.92
albedo["low-frequency"] = 0.84
standard_pressure_millibars = standard_pressure / 100
un = 0.0003 # atm*cm, from [Gueymard 2008], p. 280
E0n = {"high-frequency": 635.4, # extra-atmospheric irradiance, 290-700 nm (UV and visible)
"low-frequency": 709.7} # extra-atmospheric irradiance, 700-4000 nm (short infrared)
def get_aerosol_forward_scatterance_factor(altitude_deg):
Z = 90 - altitude_deg
return 1 - math.e ** (-0.6931 - 1.8326 * math.cos(math.radians(Z)))
def get_aerosol_optical_depth(turbidity_beta, effective_wavelength, turbidity_alpha):
# returns tau_a
return turbidity_beta * effective_wavelength ** -turbidity_alpha
def get_aerosol_scattering_correction_factor(band, ma, tau_a):
# returns F
if band == "high-frequency":
g0 = (3.715 + 0.368 * ma + 0.036294 * ma ** 2) / \
(1 + 0.0009391 * ma ** 2)
g1 = (-0.164 - 0.72567 * ma + 0.20701 * ma ** 2) / \
(1 + 0.001901 * ma ** 2)
g2 = (-0.052288 + 0.31902 * ma + 0.17871 * ma ** 2) / \
(1 + 0.0069592 * ma ** 2)
return (g0 + g1 * tau_a) / (1 + g2 * tau_a)
else:
h0 = (3.4352 + 0.65267 * ma + 0.00034328 * ma ** 2) / \
(1 + 0.034388 * ma ** 1.5)
h1 = (1.231 - 1.63853 * ma + 0.20667 * ma ** 2) / \
(1 + 0.1451 * ma ** 1.5)
h2 = (0.8889 - 0.55063 * ma + 0.50152 * ma ** 2) / \
(1 + 0.14865 * ma ** 1.5)
return (h0 + h1 * tau_a) / (1 + h2 * tau_a)
def get_aerosol_transmittance(band, ma, tau_a):
# returns Ta
return math.exp(-ma * tau_a)
def get_aerosol_scattering_transmittance(band, ma, tau_a):
# returns Tas
return math.exp(-ma * albedo[band] * tau_a)
def get_backscattered_diffuse_broadband_irradiance(band, turbidity_alpha=1.3, turbidity_beta=0.6):
return get_backscattered_diffuse_broadband_irradiance_by_band("high-frequency", turbidity_alpha, turbidity_beta) + get_backscattered_diffuse_broadband_irradiance_by_band("low-frequency", turbidity_alpha, turbidity_beta)
def get_backscattered_diffuse_irradiance_by_band(band, Ebi, Edpi, turbidity_alpha=1.3, turbidity_beta=0.6):
rhos = get_sky_albedo(band, turbidity_alpha, turbidity_beta)
rhog = get_ground_albedo(band)
Eddi = rhog * rhos * (Ebi + Edpi) / (1 - rhog * rhos)
return Eddi
def get_beam_broadband_irradiance(altitude_deg, pressure_millibars=standard_pressure_millibars, ozone_atm_cm=0.35, nitrogen_atm_cm=0.0002, precipitable_water_cm=5.0, turbidity_alpha=1.3, turbidity_beta=0.6):
Z = 90 - altitude_deg
Ebn = get_broadband_direct_normal_irradiance(altitude_deg, pressure_millibars, ozone_atm_cm, nitrogen_atm_cm, precipitable_water_cm, turbidity_alpha, turbidity_beta)
return Ebn * math.cos(math.radians(Z))
def get_beam_irradiance_by_band(band, altitude_deg, pressure_millibars=standard_pressure_millibars, ozone_atm_cm=0.35, nitrogen_atm_cm=0.0002, precipitable_water_cm=5.0, turbidity_alpha=1.3, turbidity_beta=0.6):
Z = 90 - altitude_deg
Ebni = get_direct_normal_irradiance_by_band(band, altitude_deg, pressure_millibars, ozone_atm_cm, nitrogen_atm_cm, precipitable_water_cm, turbidity_alpha, turbidity_beta)
return Ebni * math.cos(math.radians(Z))
def get_diffuse_broadband_irradiance(air_mass=1.66, turbidity_alpha=1.3, turbidity_beta=0.6):
return get_diffuse_irradiance_by_band("high-frequency", air_mass, turbidity_alpha, turbidity_beta) + get_diffuse_irradiance_by_band("low-frequency", air_mass, turbidity_alpha, turbidity_beta)
def get_diffuse_irradiance_by_band(band, air_mass=1.66, turbidity_alpha=1.3, turbidity_beta=0.6):
Z = 90 - altitude_deg
effective_wavelength = get_effective_aerosol_wavelength(band, turbidity_alpha)
tau_a = get_aerosol_optical_depth(
turbidity_beta, effective_wavelength, turbidity_alpha)
ma = get_optical_mass_aerosol(altitude_deg)
mo = get_optical_mass_ozone(altitude_deg)
mR = get_optical_mass_rayleigh(altitude_deg, pressure_millibars)
To = get_ozone_transmittance(band, mo)
Tg = get_gas_transmittance(band, mR)
Tn = get_nitrogen_transmittance(band, 1.66)
Tw = get_water_vapor_transmittance(band, 1.66)
TR = get_rayleigh_transmittance(band, mR)
Ta = get_aerosol_transmittance(band, ma, tau_a)
Tas = get_aerosol_scattering_transmittance(band, ma, tau_a)
BR = get_rayleigh_extinction_forward_scattering_fraction(band, air_mass)
Ba = get_aerosol_forward_scatterance_factor(altitude_deg)
F = get_aerosol_scattering_correction_factor(band, ma, tau_a)
Edpi = To * Tg * Tn * Tw * \
(BR * (1 - TR) * Ta ** 0.25 + Ba * F * TR * (1 - Tas ** 0.25)) * \
E0n[band]
return Edpi
def get_broadband_direct_normal_irradiance(altitude_deg, pressure_millibars=standard_pressure_millibars, ozone_atm_cm=0.35, nitrogen_atm_cm=0.0002, precipitable_water_cm=5.0, turbidity_alpha=1.3, turbidity_beta=0.6):
high = get_direct_normal_irradiance_by_band("high-frequency", altitude_deg, pressure_millibars,
ozone_atm_cm, nitrogen_atm_cm, precipitable_water_cm, turbidity_alpha, turbidity_beta)
low = get_direct_normal_irradiance_by_band("low-frequency", altitude_deg, pressure_millibars,
ozone_atm_cm, nitrogen_atm_cm, precipitable_water_cm, turbidity_alpha, turbidity_beta)
return high + low
def get_direct_normal_irradiance_by_band(band, altitude_deg, pressure_millibars=standard_pressure_millibars, ozone_atm_cm=0.35, nitrogen_atm_cm=0.0002, precipitable_water_cm=5.0, turbidity_alpha=1.3, turbidity_beta=0.6):
ma = get_optical_mass_aerosol(altitude_deg)
mo = get_optical_mass_ozone(altitude_deg)
mR = get_optical_mass_rayleigh(altitude_deg, pressure_millibars)
mRprime = mR * pressure_millibars / standard_pressure_millibars
mw = get_optical_mass_water(altitude_deg)
effective_wavelength = get_effective_aerosol_wavelength(
band, ma, turbidity_alpha, turbidity_beta)
tau_a = get_aerosol_optical_depth(
turbidity_beta, effective_wavelength, turbidity_alpha)
TR = get_rayleigh_transmittance(band, mRprime)
Tg = get_gas_transmittance(band, mRprime)
To = get_ozone_transmittance(band, mo, ozone_atm_cm)
# is water_optical_mass really used for nitrogen calc?
Tn = get_nitrogen_transmittance(band, mw, nitrogen_atm_cm)
Tw = get_water_vapor_transmittance(band, mw, precipitable_water_cm)
Ta = get_aerosol_transmittance(band, ma, tau_a)
return E0n[band] * TR * Tg * To * Tn * Tw * Ta
def get_effective_aerosol_wavelength(band, ma, turbidity_alpha, turbidity_beta):
# This function has an error somewhere. It returns negative values sometimes, but wavelength should always be positive.
ua = math.log(1 + ma * turbidity_beta)
if band == "high-frequency":
a1 = turbidity_alpha # just renaming to keep equations short
d0 = 0.57664 - 0.024743 * a1
d1 = (0.093942 - 0.2269 * a1 + 0.12848 * a1 ** 2) / (1 + 0.6418 * a1)
d2 = (-0.093819 + 0.36668 * a1 - 0.12775 * a1 ** 2) / \
(1 - 0.11651 * a1)
d3 = a1 * (0.15232 - 0.087214 * a1 + 0.012664 * a1 ** 2) / \
(1 - 0.90454 * a1 + 0.26167 * a1 ** 2)
return (d0 + d1 * ua + d2 * ua ** 2) / (1 + d3 * ua ** 2)
else:
a2 = turbidity_alpha
e0 = (1.183 - 0.022989 * a2 + 0.020829 * a2 ** 2) / (1 + 0.11133 * a2)
e1 = (-0.50003 - 0.18329 * a2 + 0.23835 * a2 ** 2) / (1 + 1.6756 * a2)
e2 = (-0.50001 + 1.1414 * a2 + 0.0083589 * a2 ** 2) / (1 + 11.168 * a2)
e3 = (-0.70003 - 0.73587 * a2 + 0.51509 * a2 ** 2) / (1 + 4.7665 * a2)
return (e0 + e1 * ua + e2 * ua ** 2) / (1 + e3 * ua)
def get_gas_transmittance(band, mRprime):
if band == "high-frequency":
return (1 + 0.95885 * mRprime + 0.012871 * mRprime ** 2) / (1 + 0.96321 * mRprime + 0.015455 * mRprime ** 2)
else:
return (1 + 0.27284 * mRprime - 0.00063699 * mRprime ** 2) / (1 + 0.30306 * mRprime)
def get_global_broadband_irradiance(altitude_deg, pressure_millibars=standard_pressure_millibars, ozone_atm_cm=0.35, nitrogen_atm_cm=0.0002, precipitable_water_cm=5.0, turbidity_alpha=1.3, turbidity_beta=0.6):
Eb_high = get_beam_irradiance_by_band("high-frequency", altitude_deg, pressure_millibars, ozone_atm_cm, nitrogen_atm_cm, precipitable_water_cm, turbidity_alpha, turbidity_beta)
Eb_low = get_beam_irradiance_by_band("low-frequency", altitude_deg, pressure_millibars, ozone_atm_cm, nitrogen_atm_cm, precipitable_water_cm, turbidity_alpha, turbidity_beta)
Edp_high = get_diffuse_irradiance_by_band("high-frequency", air_mass, turbidity_alpha, turbidity_beta)
Edp_low = get_diffuse_irradiance_by_band("low-frequency", air_mass, turbidity_alpha, turbidity_beta)
Edd_high = get_backscattered_diffuse_irradiance_by_band("high-frequency", Eb_high, Edp_high, turbidity_alpha, turbidity_beta)
Edd_low = get_backscattered_diffuse_irradiance_by_band("low-frequency", Eb_low, Edp_low, turbidity_alpha, turbidity_beta)
return Eb_high + Eb_low + Edp_high + Edp_low + Edd_high + Edd_low
def get_ground_albedo(band):
# This could probably be improved with [Gueymard, 1993: Mathematically integrable parameterization of clear-sky beam and global irradiances and its use in daily irradiation applications]
# http://www.sciencedirect.com/science/article/pii/0038092X9390059W]
return 0.150 # mean ground albedo from [Gueymard, 2008], Table 1
def get_nitrogen_transmittance(band, mw, nitrogen_atm_cm):
if band == "high-frequency":
g1 = (0.17499 + 41.654 * un - 2146.4 * un ** 2) / \
(1 + 22295.0 * un ** 2)
g2 = un * (-1.2134 + 59.324 * un) / (1 + 8847.8 * un ** 2)
g3 = (0.17499 + 61.658 * un + 9196.4 * un ** 2) / \
(1 + 74109.0 * un ** 2)
return min(1, (1 + g1 * mw + g2 * mw ** 2) / (1 + g3 * mw))
else:
return 1.0
# from Appendix B of [Gueymard, 2003]
def get_optical_mass_rayleigh(altitude_deg, pressure_millibars):
Z = 90 - altitude_deg
Z_rad = math.radians(Z)
return (pressure_millibars / standard_pressure_millibars) / ((math.cos(Z_rad) + 0.48353 * Z_rad ** 0.095846) / (96.741 - Z_rad) ** 1.754)
def get_optical_mass_ozone(altitude_deg): # from Appendix B of [Gueymard, 2003]
Z = 90 - altitude_deg
Z_rad = math.radians(Z)
return 1 / ((math.cos(Z_rad) + 1.0651 * Z_rad ** 0.6379) / (101.8 - Z_rad) ** 2.2694)
def get_optical_mass_water(altitude_deg): # from Appendix B of [Gueymard, 2003]
Z = 90 - altitude_deg
Z_rad = math.radians(Z)
return 1 / ((math.cos(Z_rad) + 0.10648 * Z_rad ** 0.11423) / (93.781 - Z_rad) ** 1.9203)
def get_optical_mass_aerosol(altitude_deg): # from Appendix B of [Gueymard, 2003]
Z = 90 - altitude_deg
Z_rad = math.radians(Z)
return 1 / ((math.cos(Z_rad) + 0.16851 * Z_rad ** 0.18198) / (95.318 - Z_rad) ** 1.9542)
def get_ozone_transmittance(band, mo, uo):
if band == "high-frequency":
f1 = uo * (10.979 - 8.5421 * uo) / (1 + 2.0115 * uo + 40.189 * uo ** 2)
f2 = uo * (-0.027589 - 0.005138 * uo) / \
(1 - 2.4857 * uo + 13.942 * uo ** 2)
f3 = uo * (10.995 - 5.5001 * uo) / (1 + 1.6784 * uo + 42.406 * uo ** 2)
return (1 + f1 * mo + f2 * mo ** 2) / (1 + f3 * mo)
else:
return 1.0
def get_rayleigh_extinction_forward_scattering_fraction(band, mR):
# returns BR
if band == "high-frequency":
return 0.5 * (0.89013 - 0.049558 * mR + 0.000045721 * mR ** 2)
else:
return 0.5
def get_rayleigh_transmittance(band, mRprime):
if band == "high-frequency":
return (1 + 1.8169 * mRprime + 0.033454 * mRprime ** 2) / (1 + 2.063 * mRprime + 0.31978 * mRprime ** 2)
else:
return (1 - 0.010394 * mRprime) / (1 - 0.00011042 * mRprime ** 2)
def get_sky_albedo(band, turbidity_alpha, turbidity_beta):
if band == "high-frequency":
a1 = turbidity_alpha # just renaming to keep equations short
b1 = turbidity_beta
rhos = (0.13363 + 0.00077358 * a1 + b1 * (0.37567
+ 0.22946 * a1) / (1 - 0.10832 * a1)) / (1 + b1 * (0.84057
+ 0.68683 * a1) / (1 - 0.08158 * a1))
else:
a2 = turbidity_alpha # just renaming to keep equations short
b2 = turbidity_beta
rhos = (0.010191 + 0.00085547 * a2 + b2 * (0.14618
+ 0.062758 * a2) / (1 - 0.19402 * a2)) / (1 + b2 * (0.58101
+ 0.17426 * a2) / (1 - 0.17586 * a2))
return rhos
def get_water_vapor_transmittance(band, mw, w):
if band == "high-frequency":
h = get_water_vapor_transmittance_coefficients(band, w)
return (1 + h[1] * mw) / (1 + h[2] * mw)
else:
c = get_water_vapor_transmittance_coefficients(band, w)
return (1 + c[1] * mw + c[2] * mw ** 2) / (1 + c[3] * mw + c[4] * mw ** 2)
def get_water_vapor_transmittance_coefficients(band, w):
if band == "high-frequency":
h1 = w * (0.065445 + 0.00029901 * w) / (1 + 1.2728 * w)
h2 = w * (0.065687 + 0.0013218 * w) / (1 + 1.2008 * w)
return [float('NaN'), h1, h2]
else:
c1 = w * (19.566 - 1.6506 * w + 1.0672 * w ** 2) / \
(1 + 5.4248 * w + 1.6005 * w ** 2)
c2 = w * (0.50158 - 0.14732 * w + 0.047584 * w ** 2) / \
(1 + 1.1811 * w + 1.0699 * w ** 2)
c3 = w * (21.286 - 0.39232 * w + 1.2692 * w ** 2) / \
(1 + 4.8318 * w + 1.412 * w ** 2)
c4 = w * (0.70992 - 0.23155 * w + 0.096514 * w ** 2) / \
(1 + 0.44907 * w + 0.75425 * w ** 2)
return [float('NaN'), c1, c2, c3, c4]
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/simulate.py 0000644 0000000 0000024 00000005311 00000000000 015641 0 ustar 00root staff # Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""Support functions for horizon calculation
"""
from . import numeric as math
import datetime
from . import constants
from . import radiation
from . import solar
def datetime_range(start_datetime, end_datetime, step_minutes):
'''yields a sequence of datetimes evenly spaced apart by step_minutes.'''
step = step_minutes * 60
span = end_datetime - start_datetime
dt = datetime.timedelta(seconds = step)
for n in range((span.days * constants.seconds_per_day + span.seconds) // step) :
yield start_datetime + dt * n
#end for
#end datetime_range
def simulate_span(latitude_deg, longitude_deg, horizon, start_datetime, end_datetime, step_minutes, elevation = 0, temperature = constants.standard_temperature, pressure = constants.standard_pressure):
'''simulates the motion of the sun over a time span and location of your choosing.
temperature in Kelvin and pressure in Pascal
The start and end points are set by datetime objects, which can be created with
the standard Python datetime module like this:
import datetime
start = datetime.datetime(2008, 12, 23, 23, 14, 0)
'''
alt_zero = 380
for time in datetime_range(start_datetime, end_datetime, step_minutes) :
alt = solar.get_altitude(latitude_deg, longitude_deg, time, elevation, temperature, pressure)
azi = solar.get_azimuth(latitude_deg, longitude_deg, time, elevation)
shade = horizon[round(azi)]
if shade < alt_zero - round(alt_zero * math.sin(math.radians(alt))) :
rad = 0
else :
rad = radiation.get_radiation_direct(time, alt)
#end if
yield time, alt, azi, rad, shade
#end for
#end simulate_span
# xs = shade.GetXShade(width, 120, azimuth_deg)
# ys = shade.GetYShade(height, 120, altitude_deg)
# shaded_area = xs * ys
# shaded_percentage = shaded_area/area
# import simulate, datetime; s = datetime.datetime(2008,1,1); e = datetime.datetime(2008,1,5); simulate.simulate_span(42.0, -70.0, s, e, 30)
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/simulate.pyi 0000644 0000000 0000024 00000001150 00000000000 016007 0 ustar 00root staff # Stubs for pysolar.simulate (Python 3.6)
import datetime
from typing import Iterator, List, Tuple
def datetime_range(start_datetime:datetime.datetime, end_datetime:datetime.datetime, step_minutes:float) -> Iterator[datetime.datetime]: ...
def simulate_span(latitude_deg:float, longitude_deg:float, horizon:List[float], start_datetime:datetime.datetime, end_datetime:datetime.datetime, step_minutes:float, elevation:float = ..., temperature:float = ..., pressure:float = ...) -> Iterator[Tuple[datetime.datetime, float, float, float, float]]: ... # TODO unclear what horizon is, and never used in the code
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/solar.py 0000644 0000000 0000024 00000044555 00000000000 015153 0 ustar 00root staff # Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""Solar geometry functions
This module contains the most important functions for calculation of the position of the sun.
"""
from . import numeric as math
import datetime
from . import constants
from . import solartime as stime
from . import radiation
from .tzinfo_check import check_aware_dt
def solar_test():
latitude_deg = 42.364908
longitude_deg = -71.112828
d = datetime.datetime.now(tz=datetime.timezone.utc)
thirty_minutes = datetime.timedelta(hours = 0.5)
for _ in range(48):
timestamp = d.ctime()
altitude_deg = get_altitude(latitude_deg, longitude_deg, d)
azimuth_deg = get_azimuth(latitude_deg, longitude_deg, d)
power = radiation.get_radiation_direct(d, altitude_deg)
if (altitude_deg > 0):
print(timestamp, "UTC", altitude_deg, azimuth_deg, power)
d = d + thirty_minutes
def equation_of_time(day):
"returns the number of minutes to add to mean solar time to get actual solar time."
b = 2 * math.pi / 364.0 * (day - 81)
return 9.87 * math.sin(2 * b) - 7.53 * math.cos(b) - 1.5 * math.sin(b)
def get_aberration_correction(sun_earth_distance): # sun-earth distance is in astronomical units
return -20.4898/(3600.0 * sun_earth_distance)
@check_aware_dt('when')
def get_topocentric_position(latitude_deg, longitude_deg, when, elevation = 0):
'''Common calculations for altitude and azimuth'''
# location-dependent calculations
projected_radial_distance = get_projected_radial_distance(elevation, latitude_deg)
projected_axial_distance = get_projected_axial_distance(elevation, latitude_deg)
# time-dependent calculations
jd = stime.get_julian_solar_day(when)
jde = stime.get_julian_ephemeris_day(when)
jce = stime.get_julian_ephemeris_century(jde)
jme = stime.get_julian_ephemeris_millennium(jce)
geocentric_latitude = get_geocentric_latitude(jme)
geocentric_longitude = get_geocentric_longitude(jme)
sun_earth_distance = get_sun_earth_distance(jme)
aberration_correction = get_aberration_correction(sun_earth_distance)
equatorial_horizontal_parallax = get_equatorial_horizontal_parallax(sun_earth_distance)
nutation = get_nutation(jce)
apparent_sidereal_time = get_apparent_sidereal_time(jd, jme, nutation)
true_ecliptic_obliquity = get_true_ecliptic_obliquity(jme, nutation)
# calculations dependent on location and time
apparent_sun_longitude = get_apparent_sun_longitude(geocentric_longitude, nutation, aberration_correction)
geocentric_sun_right_ascension = get_geocentric_sun_right_ascension(apparent_sun_longitude, true_ecliptic_obliquity, geocentric_latitude)
geocentric_sun_declination = get_geocentric_sun_declination(apparent_sun_longitude, true_ecliptic_obliquity, geocentric_latitude)
local_hour_angle = get_local_hour_angle(apparent_sidereal_time, longitude_deg, geocentric_sun_right_ascension)
parallax_sun_right_ascension = get_parallax_sun_right_ascension(projected_radial_distance, equatorial_horizontal_parallax, local_hour_angle, geocentric_sun_declination)
topocentric_local_hour_angle = get_topocentric_local_hour_angle(local_hour_angle, parallax_sun_right_ascension)
topocentric_sun_declination = get_topocentric_sun_declination(geocentric_sun_declination, projected_axial_distance, equatorial_horizontal_parallax, parallax_sun_right_ascension, local_hour_angle)
return topocentric_sun_declination, topocentric_local_hour_angle
@check_aware_dt('when')
def get_position(latitude_deg, longitude_deg, when, elevation=0,
temperature = constants.standard_temperature,
pressure = constants.standard_pressure):
''' Given location, time and atmospheric conditions
temperature in Kelvin and pressure in Pascal
returns (azimuth, altitude) of sun in degrees.
Same as a combination of get_azimuth and get_altitude
'''
topocentric_sun_declination, topocentric_local_hour_angle = \
get_topocentric_position(latitude_deg, longitude_deg, when, elevation)
topocentric_elevation_angle = \
get_topocentric_elevation_angle(latitude_deg, topocentric_sun_declination,
topocentric_local_hour_angle)
refraction_correction = get_refraction_correction(pressure, temperature,
topocentric_elevation_angle)
altitude_deg = topocentric_elevation_angle + refraction_correction
azimuth_deg = get_topocentric_azimuth_angle(topocentric_local_hour_angle,
latitude_deg, topocentric_sun_declination)
return azimuth_deg, altitude_deg
@check_aware_dt('when')
def get_altitude(latitude_deg, longitude_deg, when, elevation = 0,
temperature = constants.standard_temperature, pressure = constants.standard_pressure):
'''See also the faster, but less accurate, get_altitude_fast()
temperature in Kelvin and pressure in Pascal
'''
topocentric_sun_declination, topocentric_local_hour_angle = \
get_topocentric_position(latitude_deg, longitude_deg, when, elevation)
topocentric_elevation_angle = get_topocentric_elevation_angle(latitude_deg, topocentric_sun_declination, topocentric_local_hour_angle)
refraction_correction = get_refraction_correction(pressure, temperature, topocentric_elevation_angle)
return topocentric_elevation_angle + refraction_correction
@check_aware_dt('when')
def get_altitude_fast(latitude_deg, longitude_deg, when):
# expect 19 degrees for solar.get_altitude(42.364908,-71.112828,datetime.datetime(2007, 2, 18, 20, 13, 1, 130320))
day = math.tm_yday(when)
declination_rad = math.radians(get_declination(day))
latitude_rad = math.radians(latitude_deg)
hour_angle = get_hour_angle(when, longitude_deg)
first_term = math.cos(latitude_rad) * math.cos(declination_rad) * math.cos(math.radians(hour_angle))
second_term = math.sin(latitude_rad) * math.sin(declination_rad)
return math.degrees(math.asin(first_term + second_term))
def get_apparent_sidereal_time(jd, jme, nutation):
return get_mean_sidereal_time(jd) + nutation['longitude'] * math.cos(get_true_ecliptic_obliquity(jme, nutation))
def get_apparent_sun_longitude(geocentric_longitude, nutation, ab_correction):
return geocentric_longitude + nutation['longitude'] + ab_correction
@check_aware_dt('when')
def get_azimuth(latitude_deg, longitude_deg, when, elevation = 0):
topocentric_sun_declination, topocentric_local_hour_angle = \
get_topocentric_position(latitude_deg, longitude_deg, when, elevation)
azimuth = get_topocentric_azimuth_angle(topocentric_local_hour_angle,
latitude_deg, topocentric_sun_declination)
return azimuth
def get_azimuth_fast(latitude_deg, longitude_deg, when):
# expect 230 degrees for solar.get_azimuth(42.364908,-71.112828,datetime.datetime(2007, 2, 18, 20, 18, 0, 0))
day = math.tm_yday(when)
declination_rad = math.radians(get_declination(day))
latitude_rad = math.radians(latitude_deg)
hour_angle_rad = math.radians(get_hour_angle(when, longitude_deg))
altitude_rad = math.radians(get_altitude_fast(latitude_deg, longitude_deg, when))
azimuth_rad = math.asin(-math.cos(declination_rad) * math.sin(hour_angle_rad) / math.cos(altitude_rad))
return math.where(math.cos(hour_angle_rad) * math.tan(latitude_rad) >= math.tan(declination_rad),
(180 - math.degrees(azimuth_rad)),
math.degrees(azimuth_rad) + 360 * (azimuth_rad < 0)
)
def get_coeff(jme, coeffs):
"computes a polynomial with time-varying coefficients from the given constant" \
" coefficients array and the current Julian millennium."
result = 0.0
x = 1.0
for line in coeffs :
c = 0.0
for l in line :
c += l[0] * math.cos(l[1] + l[2] * jme)
#end for
result += c * x
x *= jme
#end for
return \
result
#end get_coeff
def get_declination(day):
'''The declination of the sun is the angle between
Earth's equatorial plane and a line between the Earth and the sun.
The declination of the sun varies between 23.45 degrees and -23.45 degrees,
hitting zero on the equinoxes and peaking on the solstices.
'''
return constants.earth_axis_inclination * math.sin((2 * math.pi / 365.0) * (day - 81))
def get_equatorial_horizontal_parallax(sun_earth_distance):
return 8.794 / (3600 / sun_earth_distance)
def get_flattened_latitude(latitude):
latitude_rad = math.radians(latitude)
return math.degrees(math.atan(0.99664719 * math.tan(latitude_rad)))
# Geocentric functions calculate angles relative to the center of the earth.
def get_geocentric_latitude(jme):
return -1 * get_heliocentric_latitude(jme)
def get_geocentric_longitude(jme):
return (get_heliocentric_longitude(jme) + 180) % 360
def get_geocentric_sun_declination(apparent_sun_longitude, true_ecliptic_obliquity, geocentric_latitude):
apparent_sun_longitude_rad = math.radians(apparent_sun_longitude)
true_ecliptic_obliquity_rad = math.radians(true_ecliptic_obliquity)
geocentric_latitude_rad = math.radians(geocentric_latitude)
a = math.sin(geocentric_latitude_rad) * math.cos(true_ecliptic_obliquity_rad)
b = math.cos(geocentric_latitude_rad) * math.sin(true_ecliptic_obliquity_rad) * math.sin(apparent_sun_longitude_rad)
delta = math.asin(a + b)
return math.degrees(delta)
def get_geocentric_sun_right_ascension(apparent_sun_longitude, true_ecliptic_obliquity, geocentric_latitude):
apparent_sun_longitude_rad = math.radians(apparent_sun_longitude)
true_ecliptic_obliquity_rad = math.radians(true_ecliptic_obliquity)
geocentric_latitude_rad = math.radians(geocentric_latitude)
a = math.sin(apparent_sun_longitude_rad) * math.cos(true_ecliptic_obliquity_rad)
b = math.tan(geocentric_latitude_rad) * math.sin(true_ecliptic_obliquity_rad)
c = math.cos(apparent_sun_longitude_rad)
alpha = math.atan2((a - b), c)
return math.degrees(alpha) % 360
# Heliocentric functions calculate angles relative to the center of the sun.
def get_heliocentric_latitude(jme):
return math.degrees(get_coeff(jme, constants.heliocentric_latitude_coeffs) / 1e8)
def get_heliocentric_longitude(jme):
return math.degrees(get_coeff(jme, constants.heliocentric_longitude_coeffs) / 1e8) % 360
@check_aware_dt('when')
def get_hour_angle(when, longitude_deg):
solar_time = get_solar_time(longitude_deg, when)
return 15.0 * (solar_time - 12.0)
def get_incidence_angle(topocentric_zenith_angle, slope, slope_orientation, topocentric_azimuth_angle):
tza_rad = math.radians(topocentric_zenith_angle)
slope_rad = math.radians(slope)
so_rad = math.radians(slope_orientation)
taa_rad = math.radians(topocentric_azimuth_angle)
return math.degrees(math.acos(math.cos(tza_rad) * math.cos(slope_rad) + math.sin(slope_rad) * math.sin(tza_rad) * math.cos(taa_rad - math.pi - so_rad)))
def get_local_hour_angle(apparent_sidereal_time, longitude, geocentric_sun_right_ascension):
return (apparent_sidereal_time + longitude - geocentric_sun_right_ascension) % 360
def get_mean_sidereal_time(jd):
# This function doesn't agree with Andreas and Reda as well as it should. Works to ~5 sig figs in current unit test
jc = stime.get_julian_century(jd)
sidereal_time = 280.46061837 + (360.98564736629 * (jd - 2451545.0)) + 0.000387933 * jc * jc * (1 - jc / 38710000)
return sidereal_time % 360
def get_nutation(jce):
abcd = constants.nutation_coefficients
nutation_long = []
nutation_oblique = []
p = constants.get_aberration_coeffs()
x = list \
(
p[k](jce)
for k in
( # order is important
'MeanElongationOfMoon',
'MeanAnomalyOfSun',
'MeanAnomalyOfMoon',
'ArgumentOfLatitudeOfMoon',
'LongitudeOfAscendingNode',
)
)
y = constants.aberration_sin_terms
for i in range(len(abcd)):
sigmaxy = 0.0
for j in range(len(x)):
sigmaxy += x[j] * y[i][j]
#end for
nutation_long.append((abcd[i][0] + (abcd[i][1] * jce)) * math.sin(math.radians(sigmaxy)))
nutation_oblique.append((abcd[i][2] + (abcd[i][3] * jce)) * math.cos(math.radians(sigmaxy)))
# 36000000 scales from 0.0001 arcseconds to degrees
nutation = {'longitude' : sum(nutation_long)/36000000.0, 'obliquity' : sum(nutation_oblique)/36000000.0}
return nutation
#end get_nutation
def get_parallax_sun_right_ascension(projected_radial_distance, equatorial_horizontal_parallax, local_hour_angle, geocentric_sun_declination):
prd = projected_radial_distance
ehp_rad = math.radians(equatorial_horizontal_parallax)
lha_rad = math.radians(local_hour_angle)
gsd_rad = math.radians(geocentric_sun_declination)
a = -1 * prd * math.sin(ehp_rad) * math.sin(lha_rad)
b = math.cos(gsd_rad) - prd * math.sin(ehp_rad) * math.cos(lha_rad)
parallax = math.atan2(a, b)
return math.degrees(parallax)
def get_projected_radial_distance(elevation, latitude):
flattened_latitude_rad = math.radians(get_flattened_latitude(latitude))
latitude_rad = math.radians(latitude)
return math.cos(flattened_latitude_rad) + (elevation * math.cos(latitude_rad) / constants.earth_radius)
def get_projected_axial_distance(elevation, latitude):
flattened_latitude_rad = math.radians(get_flattened_latitude(latitude))
latitude_rad = math.radians(latitude)
return 0.99664719 * math.sin(flattened_latitude_rad) + (elevation * math.sin(latitude_rad) / constants.earth_radius)
def get_sun_earth_distance(jme):
return get_coeff(jme, constants.sun_earth_distance_coeffs) / 1e8
def get_refraction_correction(pressure, temperature, topocentric_elevation_angle):
#function and default values according to original NREL SPA C code
#http://www.nrel.gov/midc/spa/
sun_radius = 0.26667
atmos_refract = 0.5667
tea = topocentric_elevation_angle
# Approximation only valid if sun is not well below horizon
# This approximation could be improved; see history at https://github.com/pingswept/pysolar/pull/23
# Better method could come from Auer and Standish [2000]:
# http://iopscience.iop.org/1538-3881/119/5/2472/pdf/1538-3881_119_5_2472.pdf
a = pressure * 2.830 * 1.02
b = 1010.0 * temperature * 60.0 * math.tan(math.radians(tea + (10.3/(tea + 5.11))))
del_e = math.where(tea >= -1.0*(sun_radius + atmos_refract),
a / b, 0.)
return del_e
@check_aware_dt('when')
def get_solar_time(longitude_deg, when):
"returns solar time in hours for the specified longitude and time," \
" accurate only to the nearest minute."
return \
(
(math.tm_hour(when) * 60 + math.tm_min(when) + 4 * longitude_deg + equation_of_time(math.tm_yday(when)))
/
60
)
# Topocentric functions calculate angles relative to a location on the surface of the earth.
def get_topocentric_azimuth_angle(topocentric_local_hour_angle, latitude, topocentric_sun_declination):
"""West is negative, East is positive, Masters p. 395"""
tlha_rad = math.radians(topocentric_local_hour_angle)
latitude_rad = math.radians(latitude)
tsd_rad = math.radians(topocentric_sun_declination)
a = math.sin(tlha_rad)
b = math.cos(tlha_rad) * math.sin(latitude_rad) - math.tan(tsd_rad) * math.cos(latitude_rad)
return (180.0 + math.degrees(math.atan2(a, b))) % 360
def get_topocentric_elevation_angle(latitude, topocentric_sun_declination, topocentric_local_hour_angle):
latitude_rad = math.radians(latitude)
tsd_rad = math.radians(topocentric_sun_declination)
tlha_rad = math.radians(topocentric_local_hour_angle)
return math.degrees(math.asin((math.sin(latitude_rad) * math.sin(tsd_rad)) + math.cos(latitude_rad) * math.cos(tsd_rad) * math.cos(tlha_rad)))
def get_topocentric_local_hour_angle(local_hour_angle, parallax_sun_right_ascension):
return local_hour_angle - parallax_sun_right_ascension
def get_topocentric_sun_declination(geocentric_sun_declination, projected_axial_distance, equatorial_horizontal_parallax, parallax_sun_right_ascension, local_hour_angle):
gsd_rad = math.radians(geocentric_sun_declination)
pad = projected_axial_distance
ehp_rad = math.radians(equatorial_horizontal_parallax)
psra_rad = math.radians(parallax_sun_right_ascension)
lha_rad = math.radians(local_hour_angle)
a = (math.sin(gsd_rad) - pad * math.sin(ehp_rad)) * math.cos(psra_rad)
b = math.cos(gsd_rad) - (pad * math.sin(ehp_rad) * math.cos(lha_rad))
return math.degrees(math.atan2(a, b))
def get_topocentric_sun_right_ascension(projected_radial_distance, equatorial_horizontal_parallax, local_hour_angle,
apparent_sun_longitude, true_ecliptic_obliquity, geocentric_latitude):
gsd = get_geocentric_sun_declination(apparent_sun_longitude, true_ecliptic_obliquity, geocentric_latitude)
psra = get_parallax_sun_right_ascension(projected_radial_distance, equatorial_horizontal_parallax, local_hour_angle, gsd)
gsra = get_geocentric_sun_right_ascension(apparent_sun_longitude, true_ecliptic_obliquity, geocentric_latitude)
return psra + gsra
def get_topocentric_zenith_angle(latitude, topocentric_sun_declination, topocentric_local_hour_angle, pressure, temperature):
tea = get_topocentric_elevation_angle(latitude, topocentric_sun_declination, topocentric_local_hour_angle)
return 90 - tea - get_refraction_correction(pressure, temperature, tea)
def get_true_ecliptic_obliquity(jme, nutation):
u = jme/10.0
mean_obliquity = 84381.448 - (4680.93 * u) - (1.55 * u ** 2) + (1999.25 * u ** 3) \
- (51.38 * u ** 4) -(249.67 * u ** 5) - (39.05 * u ** 6) + (7.12 * u ** 7) \
+ (27.87 * u ** 8) + (5.79 * u ** 9) + (2.45 * u ** 10)
return (mean_obliquity / 3600.0) + nutation['obliquity']
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/solar.pyi 0000644 0000000 0000024 00000007602 00000000000 015314 0 ustar 00root staff # Stubs for pysolar.solar (Python 3.6)
import datetime
from typing import List, Tuple
def solar_test() -> None: ...
def equation_of_time(day:int) -> float: ...
def get_aberration_correction(sun_earth_distance:float) -> float: ...
def get_altitude(latitude_deg:float, longitude_deg:float, when:datetime.datetime, elevation:float = ..., temperature:float = ..., pressure:float = ...) -> float: ...
def get_altitude_fast(latitude_deg:float, longitude_deg:float, when:datetime.datetime) -> float: ...
def get_apparent_sidereal_time(jd:float, jme:float, nutation_float) -> float: ...
def get_apparent_sun_longitude(geocentric_longitude:float, nutation:float, ab_correction:float) -> float: ...
def get_azimuth(latitude_deg:float, longitude_deg:float, when:datetime.datetime, elevation:float = ...) -> float: ...
def get_azimuth_fast(latitude_deg:float, longitude_deg:float, when:datetime.datetime) -> float: ...
def get_coeff(jme:float, coeffs:List[List[float]]) -> float: ...
def get_declination(day:int) -> float: ...
def get_equatorial_horizontal_parallax(sun_earth_distance:float) -> float: ...
def get_flattened_latitude(latitude:float) -> float: ...
def get_geocentric_latitude(jme:float) -> float: ...
def get_geocentric_longitude(jme:float) -> float: ...
def get_geocentric_sun_declination(apparent_sun_longitude:float, true_ecliptic_obliquity:float, geocentric_latitude:float) -> float: ...
def get_geocentric_sun_right_ascension(apparent_sun_longitude:float, true_ecliptic_obliquity:float, geocentric_latitude:float) -> float: ...
def get_heliocentric_latitude(jme:float) -> float: ...
def get_heliocentric_longitude(jme:float) -> float: ...
def get_hour_angle(when:datetime.datetime, longitude_deg:float) -> float: ...
def get_incidence_angle(topocentric_zenith_angle:float, slope:float, slope_orientation:float, topocentric_azimuth_angle:float) -> float: ...
def get_local_hour_angle(apparent_sidereal_time:float, longitude:float, geocentric_sun_right_ascension:float) -> float: ...
def get_mean_sidereal_time(jd:float) -> float: ...
def get_nutation(jce:float) -> float: ...
def get_parallax_sun_right_ascension(projected_radial_distance:float, equatorial_horizontal_parallax:float, local_hour_angle:float, geocentric_sun_declination:float) -> float: ...
def get_position(latitude_deg:float, longitude_deg:float, when:datetime.datetime, elevation:float = ..., temperature:float = ..., pressure:float = ...) -> Tuple[float, float]: ...
def get_projected_radial_distance(elevation:float, latitude:float) -> float: ...
def get_projected_axial_distance(elevation:float, latitude:float) -> float: ...
def get_sun_earth_distance(jme:float) -> float: ...
def get_refraction_correction(pressure:float, temperature:float, topocentric_elevation_angle:float) -> float: ...
def get_solar_time(longitude_deg:float, when:datetime.datetime) -> float: ...
def get_topocentric_azimuth_angle(topocentric_local_hour_angle:float, latitude:float, topocentric_sun_declination:float) -> float: ...
def get_topocentric_elevation_angle(latitude:float, topocentric_sun_declination:float, topocentric_local_hour_angle:float) -> float: ...
def get_topocentric_local_hour_angle(local_hour_angle:float, parallax_sun_right_ascension:float) -> float: ...
def get_topocentric_sun_declination(geocentric_sun_declination:float, projected_axial_distance:float, equatorial_horizontal_parallax:float, parallax_sun_right_ascension:float, local_hour_angle:float) -> float: ...
def get_topocentric_sun_right_ascension(projected_radial_distance:float, equatorial_horizontal_parallax:float, local_hour_angle:float, apparent_sun_longitude:float, true_ecliptic_obliquity:float, geocentric_latitude:float) -> float: ...
def get_topocentric_zenith_angle(latitude:float, topocentric_sun_declination:float, topocentric_local_hour_angle:float, pressure:float, temperature:float) -> float: ...
def get_true_ecliptic_obliquity(jme:float, nutation:float) -> float: ...
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1736004030.0
pysolar-0.13/pysolar/solartime.py 0000644 0000000 0000024 00000050111 00000000000 016013 0 ustar 00root staff # Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""This file contains functions related to time conversion.
"""
import warnings
import sys
import datetime
import time
from .constants import \
seconds_per_day
from pysolar.tzinfo_check import check_aware_dt
julian_day_offset = 1721425 - 0.5 # add to datetime.datetime.toordinal() to get Julian day number
gregorian_day_offset = 719163 # number of days to add to datetime.datetime.timestamp() / seconds_per_day to agree with datetime.datetime.toordinal()
tt_offset = 32.184 # seconds to add to TAI to get TT
#+
# Table of leap-seconds (to date) taken from Wikipedia
# .
#-
leap_seconds_base_year = 1972
leap_seconds_adjustments = \
[ # two entries per year starting from 1972, first for 23:59:59 June 30,
# second for 23:59:59 December 31. +1 indicates that 23:59:60 follows,
# -1 indicates that 23:59:59 does not exist, not that the latter has ever occurred.
# source: https://www.nist.gov/pml/time-and-frequency-division/atomic-standards/leap-second-and-ut1-utc-information
(+1, +1), # 1972
(0, +1), # 1973
(0, +1), # 1974
(0, +1), # 1975
(0, +1), # 1976
(0, +1), # 1977
(0, +1), # 1978
(0, +1), # 1979
(0, 0), # 1980
(+1, 0), # 1981
(+1, 0), # 1982
(+1, 0), # 1983
(0, 0), # 1984
(+1, 0), # 1985
(0, 0), # 1986
(0, +1), # 1987
(0, 0), # 1988
(0, +1), # 1989
(0, +1), # 1990
(0, 0), # 1991
(+1, 0), # 1992
(+1, 0), # 1993
(+1, 0), # 1994
(0, +1), # 1995
(0, 0), # 1996
(+1, 0), # 1997
(0, +1), # 1998
(0, 0), # 1999
(0, 0), # 2000
(0, 0), # 2001
(0, 0), # 2002
(0, 0), # 2003
(0, 0), # 2004
(0, +1), # 2005
(0, 0), # 2006
(0, 0), # 2007
(0, +1), # 2008
(0, 0), # 2009
(0, 0), # 2010
(0, 0), # 2011
(+1, 0), # 2012
(0, 0), # 2013
(0, 0), # 2014
(+1, 0), # 2015
(0, +1), # 2016
(0, 0), # 2017
(0, 0), # 2018
(0, 0), # 2019
(0, 0), # 2020
(0, 0), # 2021
(0, 0), # 2022
(0, 0), # 2023
(0, 0), # 2024
(0, 0), # 2025
]
@check_aware_dt('when')
def get_leap_seconds(when) :
"returns adjustment to be added to UTC at the specified datetime to produce TAI."
when = when.utctimetuple()
adj = 10 # as decreed from 1972
year = leap_seconds_base_year
while True :
if year > when.tm_year :
break
if year - leap_seconds_base_year >= len(leap_seconds_adjustments) :
if (
when.tm_year - leap_seconds_base_year > len(leap_seconds_adjustments)
or
when.tm_year - leap_seconds_base_year == len(leap_seconds_adjustments)
and
when.tm_mon > 6
) :
warnings.warn \
(
"Leap seconds for year %d are not available for the installed version of pysolar"
%
(leap_seconds_base_year + len(leap_seconds_adjustments) - 1)
)
#end if
break
#end if
entry = leap_seconds_adjustments[year - leap_seconds_base_year]
if year == when.tm_year :
if when.tm_mon > 6 :
adj += entry[0]
#end if
break
#end if
adj += entry[0] + entry[1]
year += 1
#end while
return \
adj
#end get_leap_seconds
# table of values to add to UT1 to get TT (to date), generated by util/get_delta_t script
delta_t_base_year = 1973
delta_t_base_month = 2
delta_t = \
[
[ # 1973
43.4724, # 2
43.5648, # 3
43.6737, # 4
43.7782, # 5
43.8763, # 6
43.9562, # 7
44.0315, # 8
44.1132, # 9
44.1982, # 10
44.2952, # 11
44.3936, # 12
],
[ # 1974
44.4841, # 1
44.5646, # 2
44.6425, # 3
44.7386, # 4
44.8370, # 5
44.9302, # 6
44.9986, # 7
45.0584, # 8
45.1284, # 9
45.2064, # 10
45.2980, # 11
45.3897, # 12
],
[ # 1975
45.4761, # 1
45.5633, # 2
45.6450, # 3
45.7375, # 4
45.8284, # 5
45.9133, # 6
45.9820, # 7
46.0408, # 8
46.1067, # 9
46.1825, # 10
46.2789, # 11
46.3713, # 12
],
[ # 1976
46.4567, # 1
46.5445, # 2
46.6311, # 3
46.7302, # 4
46.8284, # 5
46.9247, # 6
46.9970, # 7
47.0709, # 8
47.1451, # 9
47.2362, # 10
47.3413, # 11
47.4319, # 12
],
[ # 1977
47.5214, # 1
47.6049, # 2
47.6837, # 3
47.7781, # 4
47.8771, # 5
47.9687, # 6
48.0348, # 7
48.0942, # 8
48.1608, # 9
48.2460, # 10
48.3439, # 11
48.4355, # 12
],
[ # 1978
48.5344, # 1
48.6325, # 2
48.7294, # 3
48.8365, # 4
48.9353, # 5
49.0319, # 6
49.1013, # 7
49.1591, # 8
49.2286, # 9
49.3070, # 10
49.4018, # 11
49.4945, # 12
],
[ # 1979
49.5862, # 1
49.6805, # 2
49.7602, # 3
49.8556, # 4
49.9489, # 5
50.0347, # 6
50.1019, # 7
50.1622, # 8
50.2260, # 9
50.2968, # 10
50.3831, # 11
50.4599, # 12
],
[ # 1980
50.5387, # 1
50.6161, # 2
50.6866, # 3
50.7658, # 4
50.8454, # 5
50.9187, # 6
50.9761, # 7
51.0278, # 8
51.0843, # 9
51.1538, # 10
51.2319, # 11
51.3063, # 12
],
[ # 1981
51.3808, # 1
51.4526, # 2
51.5160, # 3
51.5985, # 4
51.6809, # 5
51.7573, # 6
51.8133, # 7
51.8532, # 8
51.9014, # 9
51.9603, # 10
52.0328, # 11
52.0985, # 12
],
[ # 1982
52.1668, # 1
52.2316, # 2
52.2938, # 3
52.3680, # 4
52.4465, # 5
52.5180, # 6
52.5752, # 7
52.6178, # 8
52.6668, # 9
52.7340, # 10
52.8056, # 11
52.8792, # 12
],
[ # 1983
52.9565, # 1
53.0445, # 2
53.1268, # 3
53.2197, # 4
53.3024, # 5
53.3747, # 6
53.4335, # 7
53.4778, # 8
53.5300, # 9
53.5845, # 10
53.6523, # 11
53.7256, # 12
],
[ # 1984
53.7882, # 1
53.8367, # 2
53.8830, # 3
53.9443, # 4
54.0042, # 5
54.0536, # 6
54.0856, # 7
54.1084, # 8
54.1463, # 9
54.1914, # 10
54.2452, # 11
54.2958, # 12
],
[ # 1985
54.3427, # 1
54.3911, # 2
54.4320, # 3
54.4898, # 4
54.5456, # 5
54.5977, # 6
54.6355, # 7
54.6532, # 8
54.6776, # 9
54.7174, # 10
54.7741, # 11
54.8253, # 12
],
[ # 1986
54.8713, # 1
54.9161, # 2
54.9581, # 3
54.9997, # 4
55.0476, # 5
55.0912, # 6
55.1132, # 7
55.1328, # 8
55.1532, # 9
55.1898, # 10
55.2416, # 11
55.2838, # 12
],
[ # 1987
55.3222, # 1
55.3613, # 2
55.4063, # 3
55.4629, # 4
55.5111, # 5
55.5524, # 6
55.5812, # 7
55.6004, # 8
55.6262, # 9
55.6656, # 10
55.7168, # 11
55.7698, # 12
],
[ # 1988
55.8197, # 1
55.8615, # 2
55.9130, # 3
55.9663, # 4
56.0220, # 5
56.0700, # 6
56.0939, # 7
56.1105, # 8
56.1314, # 9
56.1611, # 10
56.2068, # 11
56.2583, # 12
],
[ # 1989
56.3000, # 1
56.3399, # 2
56.3790, # 3
56.4283, # 4
56.4804, # 5
56.5352, # 6
56.5697, # 7
56.5983, # 8
56.6328, # 9
56.6739, # 10
56.7332, # 11
56.7972, # 12
],
[ # 1990
56.8553, # 1
56.9111, # 2
56.9755, # 3
57.0471, # 4
57.1136, # 5
57.1738, # 6
57.2226, # 7
57.2597, # 8
57.3073, # 9
57.3643, # 10
57.4334, # 11
57.5016, # 12
],
[ # 1991
57.5653, # 1
57.6333, # 2
57.6973, # 3
57.7711, # 4
57.8407, # 5
57.9058, # 6
57.9576, # 7
57.9975, # 8
58.0426, # 9
58.1043, # 10
58.1679, # 11
58.2389, # 12
],
[ # 1992
58.3092, # 1
58.3833, # 2
58.4537, # 3
58.5401, # 4
58.6228, # 5
58.6917, # 6
58.7410, # 7
58.7836, # 8
58.8406, # 9
58.8986, # 10
58.9714, # 11
59.0438, # 12
],
[ # 1993
59.1218, # 1
59.2003, # 2
59.2747, # 3
59.3574, # 4
59.4434, # 5
59.5242, # 6
59.5850, # 7
59.6344, # 8
59.6928, # 9
59.7588, # 10
59.8386, # 11
59.9111, # 12
],
[ # 1994
59.9845, # 1
60.0564, # 2
60.1231, # 3
60.2042, # 4
60.2804, # 5
60.3530, # 6
60.4012, # 7
60.4440, # 8
60.4900, # 9
60.5578, # 10
60.6324, # 11
60.7059, # 12
],
[ # 1995
60.7853, # 1
60.8664, # 2
60.9387, # 3
61.0277, # 4
61.1103, # 5
61.1870, # 6
61.2454, # 7
61.2881, # 8
61.3378, # 9
61.4036, # 10
61.4760, # 11
61.5525, # 12
],
[ # 1996
61.6287, # 1
61.6846, # 2
61.7433, # 3
61.8132, # 4
61.8823, # 5
61.9497, # 6
61.9969, # 7
62.0343, # 8
62.0714, # 9
62.1202, # 10
62.1810, # 11
62.2382, # 12
],
[ # 1997
62.2950, # 1
62.3506, # 2
62.3995, # 3
62.4754, # 4
62.5463, # 5
62.6136, # 6
62.6571, # 7
62.6942, # 8
62.7383, # 9
62.7926, # 10
62.8567, # 11
62.9146, # 12
],
[ # 1998
62.9659, # 1
63.0217, # 2
63.0807, # 3
63.1462, # 4
63.2053, # 5
63.2599, # 6
63.2844, # 7
63.2961, # 8
63.3126, # 9
63.3422, # 10
63.3871, # 11
63.4339, # 12
],
[ # 1999
63.4673, # 1
63.4979, # 2
63.5319, # 3
63.5679, # 4
63.6104, # 5
63.6444, # 6
63.6642, # 7
63.6739, # 8
63.6926, # 9
63.7147, # 10
63.7518, # 11
63.7927, # 12
],
[ # 2000
63.8285, # 1
63.8557, # 2
63.8804, # 3
63.9075, # 4
63.9393, # 5
63.9691, # 6
63.9799, # 7
63.9833, # 8
63.9938, # 9
64.0093, # 10
64.0400, # 11
64.0670, # 12
],
[ # 2001
64.0908, # 1
64.1068, # 2
64.1282, # 3
64.1584, # 4
64.1833, # 5
64.2094, # 6
64.2117, # 7
64.2073, # 8
64.2116, # 9
64.2223, # 10
64.2500, # 11
64.2761, # 12
],
[ # 2002
64.2998, # 1
64.3192, # 2
64.3450, # 3
64.3735, # 4
64.3943, # 5
64.4151, # 6
64.4132, # 7
64.4118, # 8
64.4097, # 9
64.4168, # 10
64.4329, # 11
64.4511, # 12
],
[ # 2003
64.4734, # 1
64.4893, # 2
64.5053, # 3
64.5269, # 4
64.5471, # 5
64.5597, # 6
64.5512, # 7
64.5371, # 8
64.5359, # 9
64.5415, # 10
64.5544, # 11
64.5654, # 12
],
[ # 2004
64.5736, # 1
64.5891, # 2
64.6015, # 3
64.6176, # 4
64.6374, # 5
64.6549, # 6
64.6530, # 7
64.6379, # 8
64.6372, # 9
64.6400, # 10
64.6543, # 11
64.6723, # 12
],
[ # 2005
64.6876, # 1
64.7052, # 2
64.7313, # 3
64.7575, # 4
64.7811, # 5
64.8001, # 6
64.7995, # 7
64.7876, # 8
64.7831, # 9
64.7921, # 10
64.8096, # 11
64.8311, # 12
],
[ # 2006
64.8452, # 1
64.8597, # 2
64.8850, # 3
64.9175, # 4
64.9480, # 5
64.9794, # 6
64.9895, # 7
65.0028, # 8
65.0138, # 9
65.0371, # 10
65.0773, # 11
65.1122, # 12
],
[ # 2007
65.1464, # 1
65.1833, # 2
65.2145, # 3
65.2494, # 4
65.2921, # 5
65.3279, # 6
65.3413, # 7
65.3452, # 8
65.3496, # 9
65.3711, # 10
65.3972, # 11
65.4296, # 12
],
[ # 2008
65.4573, # 1
65.4868, # 2
65.5152, # 3
65.5450, # 4
65.5781, # 5
65.6127, # 6
65.6288, # 7
65.6370, # 8
65.6493, # 9
65.6760, # 10
65.7097, # 11
65.7461, # 12
],
[ # 2009
65.7768, # 1
65.8025, # 2
65.8237, # 3
65.8595, # 4
65.8973, # 5
65.9323, # 6
65.9509, # 7
65.9534, # 8
65.9628, # 9
65.9839, # 10
66.0147, # 11
66.0420, # 12
],
[ # 2010
66.0699, # 1
66.0961, # 2
66.1310, # 3
66.1683, # 4
66.2072, # 5
66.2356, # 6
66.2409, # 7
66.2335, # 8
66.2349, # 9
66.2441, # 10
66.2751, # 11
66.3054, # 12
],
[ # 2011
66.3246, # 1
66.3406, # 2
66.3624, # 3
66.3957, # 4
66.4289, # 5
66.4619, # 6
66.4749, # 7
66.4751, # 8
66.4829, # 9
66.5056, # 10
66.5383, # 11
66.5706, # 12
],
[ # 2012
66.6030, # 1
66.6340, # 2
66.6569, # 3
66.6925, # 4
66.7289, # 5
66.7579, # 6
66.7708, # 7
66.7740, # 8
66.7846, # 9
66.8103, # 10
66.8400, # 11
66.8779, # 12
],
[ # 2013
66.9069, # 1
66.9443, # 2
66.9763, # 3
67.0258, # 4
67.0716, # 5
67.1100, # 6
67.1266, # 7
67.1331, # 8
67.1458, # 9
67.1718, # 10
67.2091, # 11
67.2460, # 12
],
[ # 2014
67.2810, # 1
67.3136, # 2
67.3457, # 3
67.3890, # 4
],
] # delta_t
@check_aware_dt('when')
def get_delta_t(when) :
"returns a suitable value for delta_t for the given datetime."
when = when.utctimetuple()
year, month = when.tm_year, when.tm_mon
if year < delta_t_base_year :
year = delta_t_base_year
month = 1
elif year == delta_t_base_year :
month = max(0, month - delta_t_base_month) + 1
elif year >= delta_t_base_year + len(delta_t) :
year = delta_t_base_year + len(delta_t) - 1
#end if
if year == delta_t_base_year + len(delta_t) - 1 :
month = min(month, len(delta_t[year - delta_t_base_year]))
#end if
return \
delta_t[year - delta_t_base_year][month - 1]
# don't bother doing any fancy interpolation
#end get_delta_t
@check_aware_dt('when')
def get_julian_solar_day(when):
"returns the UT Julian day number (including fraction of a day) corresponding to" \
" the specified date/time. This version assumes the proleptic Gregorian calendar;" \
" trying to adjust for pre-Gregorian dates/times seems pointless when the changeover" \
" happened over such wildly varying times in different regions."
return \
(
(when.timestamp() + get_leap_seconds(when) + tt_offset - get_delta_t(when))
/
seconds_per_day
+
gregorian_day_offset
+
julian_day_offset
)
#end get_julian_solar_day
@check_aware_dt('when')
def get_julian_ephemeris_day(when) :
"returns the TT Julian day number (including fraction of a day) corresponding to" \
" the specified date/time. This version assumes the proleptic Gregorian calendar;" \
" trying to adjust for pre-Gregorian dates/times seems pointless when the changeover" \
" happened over such wildly varying times in different regions."
return \
(
(when.timestamp() + get_leap_seconds(when) + tt_offset)
/
seconds_per_day
+
gregorian_day_offset
+
julian_day_offset
)
#end get_julian_ephemeris_day
def get_julian_century(julian_day):
return (julian_day - 2451545.0) / 36525.0
def get_julian_ephemeris_century(julian_ephemeris_day):
return (julian_ephemeris_day - 2451545.0) / 36525.0
def get_julian_ephemeris_millennium(julian_ephemeris_century):
return (julian_ephemeris_century / 10.0)
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/solartime.pyi 0000644 0000000 0000024 00000001415 00000000000 016167 0 ustar 00root staff # Stubs for pysolar.time (Python 3.6)
import datetime
from typing import List, Tuple
julian_day_offset: float
gregorian_day_offset: int
tt_offset: float
leap_seconds_base_year: int
leap_seconds_adjustments: List[Tuple[float,float]]
def get_leap_seconds(when:datetime.datetime) -> int: ...
delta_t_base_year: int
delta_t_base_month: int
delta_t: List[List[float]]
def get_delta_t(when:datetime.datetime) -> float: ...
def get_julian_solar_day(when:datetime.datetime) -> float: ...
def get_julian_ephemeris_day(when:datetime.datetime) -> float: ...
def get_julian_century(julian_day:float) -> float: ...
def get_julian_ephemeris_century(julian_ephemeris_day:float) -> float: ...
def get_julian_ephemeris_millennium(julian_ephemeris_century) -> float: ...
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/tzinfo_check.py 0000644 0000000 0000024 00000006164 00000000000 016473 0 ustar 00root staff from functools import wraps
import inspect
class NoTimeZoneInfoError(ValueError):
def __init__(self, argname, dt, *args):
self.argname = argname
self.dt = dt
super().__init__(*args)
def __str__(self):
return """datetime value '{dt}' given for arg '{argname}' \
should be made timezone-aware.
You have to specify the 'tzinfo' attribute of \
'datetime.datetime' objects.""".format(dt=self.dt,
argname=self.argname)
def check_aware_dt(*argnames):
"""Returns a decorator that makes sure that
all the arguments in 'argnames', are 'datetime.datetime' objects
with a non-null tzinfo attribute
Parameters
----------
argnames : List[str]
list of names from the arguments of function 'func'
(the decorated function) that are supposed to only accept
as values 'datetime.datetime' objects
with a non-null tzinfo attribute
Returns
-------
checker : function
decorator that makes sure that every argument of the decorated
function that is in 'argnames' is given only 'datetime.datetime' objects
with non-null tzinfo attribute as values"""
def checker(func):
"""Decorator (see above in the `Returns` section)
Parameters
----------
func : function
decorated function
every argument of 'func' that is in argnames
will only accept tz-aware 'datetime' objects
Returns
-------
func_with_check : function
decorated function, basically the same function as 'func',
with the check for tz-awareness performed before execution"""
@wraps(func)
def func_with_check(*args, **kwargs):
"""Decorated function ; will be, apart from the check,
completely identical to the 'func' function
We search for 'argnames' values in args and kwargs
Parameters
----------
args : list
list of positional arguments that are supposedly
passed to the 'func' function
kwargs : dict
dict of keyword arguments that are supposedly passed
to the 'func' function
Returns
-------
func(*args, **kwargs)
we return the very same result that would have been returned
by the 'func' function alone
we just checked the values of args from argnames before"""
for argname in argnames:
# first checking if argname is a valid arg name
full = inspect.getfullargspec(func)
if (argname in full.args or
argname in full.kwonlyargs):
# getting value given for argname
try:
dt = args[full.args.index(argname)]
except (IndexError, ValueError):
dt = kwargs[argname]
# checking if dt is timezone-aware
if not hasattr(dt, 'shape'): # don't raise Exception if dt is an array (assumed of datetime64)
if not hasattr(dt, 'tzinfo'):
raise ValueError(
"Expected a 'datetime.datetime' object \
for arg '%s', got %s instead" % (argname, dt))
if dt.tzinfo is None:
raise NoTimeZoneInfoError(argname, dt)
return func(*args, **kwargs)
return func_with_check
return checker
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/util.py 0000644 0000000 0000024 00000062037 00000000000 015003 0 ustar 00root staff # -*- coding: utf-8 -*-
# Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""Additional support functions for solar geometry, astronomy, radiation correlation
:Original author: Simeon Nwaogaidu
:Contact: SimeonObinna.Nwaogaidu AT lahmeyer DOT de
:Additional author: Holger Zebner
:Contact: holger.zebner AT lahmeyer DOT de
:Additional author: Brandon Stafford
"""
from datetime import \
datetime, \
timedelta
from . import numeric as math
from . import solar, constants
from .tzinfo_check import check_aware_dt
# Some default constants
AM_default = 2.0 # Default air mass is 2.0
TL_default = 1.0 # Default Linke turbidity factor is 1.0
SC_default = 1367.0 # Solar constant in W/m^2 is 1367.0. Note that this value could vary by +/-4 W/m^2
TY_default = 365 # Total year number from 1 to 365 days
elevation_default = 0.0 # Default elevation is 0.0
# Useful equations for analysis
@check_aware_dt('when')
def get_sunrise_sunset_transit(latitude_deg, longitude_deg, when):
"""This function calculates the astronomical sunrise, sunset and sun transit times in local time.
Parameters
----------
latitude_deg : float
latitude in decimal degree. A geographical term denoting
the north/south angular location of a place on a sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location
in an east-west direction,relative to the Greenwich meridian.
when : datetime.datetime
date and time in any valid timezone, answers will be for same day in same timezone.
Returns
-------
sunrise_time_dt : datetime.datetime
Sunrise time in local time.
sunset_time_dt : datetime.datetime
Sunset time in local time.
transit_time_dt:
Sun transit time in local time.
References
----------
.. [1] http://www.skypowerinternational.com/uploads/documents/7.1415.01.121_cm121_bed-anleitung_engl.pdf
.. [2] http://pysolar.org/
.. [3] https://www.esrl.noaa.gov/gmd/grad/solcalc/solareqns.PDF
.. [4] https://www.sciencedirect.com/science/article/pii/S0038092X11004592
.. [5] https://iris.unipa.it/retrieve/handle/10447/55143/28818/Articolo.pdf
Examples
--------
>>> lat = 50.111512
>>> lon = 8.680506
>>> timezone_local = dateutil.tz.gettz('Europe/Berlin')
>>> now = datetime.now(timezone_local)
>>> sr, ss, tr = sb.get_sunrise_sunset_transit(lat, lon, now)
>>> print('sunrise: ', sr)
>>> print('sunset:', ss)
>>> print('transit:', tr)
"""
utc_offset = when.utcoffset()
if utc_offset != None :
utc_offset = utc_offset.total_seconds()
else :
utc_offset = 0
#end if
day = when.timetuple().tm_yday # Day of the year
SHA = utc_offset / 3600 * 15.0 - longitude_deg # Solar hour angle
TT = 2 * math.pi * day / 366
decl = \
(
0.322003
-
22.971 * math.cos(TT)
-
0.357898 * math.cos(2 * TT)
-
0.14398 * math.cos(3 * TT)
+
3.94638 * math.sin(TT)
+
0.019334 * math.sin(2 * TT)
+
0.05928 * math.sin(3 * TT)
) # solar declination in degrees
TT = math.radians(279.134 + 0.985647 * day) # Time adjustment angle
time_adst = \
(
(
5.0323
-
100.976 * math.sin(TT)
+
595.275 * math.sin(2 * TT)
+
3.6858 * math.sin(3 * TT)
-
12.47 * math.sin(4 * TT)
-
430.847 * math.cos(TT)
+
12.5024 * math.cos(2 * TT)
+
18.25 * math.cos(3 * TT)
)
/
3600
) # Time adjustment in hours
TON = 12 + SHA / 15.0 - time_adst # Time of noon
ha = \
(
math.acos(
math.cos(math.radians(90.833))
/
(
math.cos(math.radians(latitude_deg))
*
math.cos(math.radians(decl))
)
-
math.tan(math.radians(latitude_deg))
*
math.tan(math.radians(decl))
)
*
(12 / math.pi)
)
same_day = datetime(year = when.year, month = when.month, day = when.day, tzinfo = when.tzinfo)
sunrise_time = same_day + timedelta(hours = TON - ha)
sunset_time = same_day + timedelta(hours = TON + ha)
transit_time = same_day + timedelta(hours = TON)
return sunrise_time, sunset_time, transit_time
@check_aware_dt('when')
def get_sunrise_sunset(latitude_deg, longitude_deg, when):
"Wrapper for get_sunrise_sunset_transit that returns just the sunrise and the sunset time."
return \
get_sunrise_sunset_transit(latitude_deg, longitude_deg, when)[0:2]
@check_aware_dt('when')
def get_sunrise_time(latitude_deg, longitude_deg, when):
"Wrapper for get_sunrise_sunset_transit that returns just the sunrise time."
return \
get_sunrise_sunset_transit(latitude_deg, longitude_deg, when)[0]
@check_aware_dt('when')
def get_sunset_time(latitude_deg, longitude_deg, when):
"Wrapper for get_sunrise_sunset_transit that returns just the sunset time."
return \
get_sunrise_sunset_transit(latitude_deg, longitude_deg, when)[1]
@check_aware_dt('when')
def get_transit_time(latitude_deg, longitude_deg, when):
"Wrapper for get_sunrise_sunset_transit that returns just the transit time."
return \
get_sunrise_sunset_transit(latitude_deg, longitude_deg, when)[2]
@check_aware_dt('when')
def mean_earth_sun_distance(when):
"""Mean Earth-Sun distance is the arithmetical mean of the maximum and minimum distances
between a planet (Earth) and the object about which it revolves (Sun). However,
the function is used to calculate the Mean earth sun distance.
Parameters
----------
when : datetime.datetime
date/time for which to do the calculation
Returns
-------
KD : float
Mean earth sun distance
References
----------
.. [1] http://sunbird.jrc.it/pvgis/solres/solmod3.htm#clear-sky%20radiation
.. [2] R. aguiar and et al, "The ESRA user guidebook, vol. 2. database", models and exploitation software-Solar
radiation models, p.113
"""
return 1 - 0.0335 * math.sin(2 * math.pi * (when.utctimetuple().tm_yday - 94)) / 365
@check_aware_dt('when')
def extraterrestrial_irrad(latitude_deg, longitude_deg, when, SC=SC_default):
"""Equation calculates Extratrestrial radiation. Solar radiation incident outside the earth's
atmosphere is called extraterrestrial radiation. On average the extraterrestrial irradiance
is 1367 Watts/meter2 (W/m2). This value varies by + or - 3 percent as the earth orbits the sun.
The earth's closest approach to the sun occurs around January 4th and it is furthest
from the sun around July 5th.
Parameters
----------
when : datetime.datetime
date/time for which to do the calculation
latitude_deg : float
latitude in decimal degree. A geographical term denoting the north/south angular location
of a place on a sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location in an east-west direction,relative
to the Greenwich meridian.
SC : float
The solar constant is the amount of incoming solar electromagnetic radiation per unit area, measured
on the outer surface of Earth's atmosphere in a plane perpendicular to the rays.It is measured by
satellite to be roughly 1366 watts per square meter (W/m^2)
Returns
-------
EXTR1 : float
Extraterrestrial irradiation
References
----------
.. [1] http://solardat.uoregon.edu/SolarRadiationBasics.html
.. [2] Dr. J. Schumacher and et al,"INSEL LE(Integrated Simulation Environment Language)Block reference",p.68
"""
day = when.utctimetuple().tm_yday
ab = math.cos(2 * math.pi * (day - 1.0)/(365.0))
bc = math.sin(2 * math.pi * (day - 1.0)/(365.0))
cd = math.cos(2 * (2 * math.pi * (day - 1.0)/(365.0)))
df = math.sin(2 * (2 * math.pi * (day - 1.0)/(365.0)))
decl = math.radians(solar.get_declination(day))
ha = math.radians(solar.get_hour_angle(when, longitude_deg))
ZA = math.sin(math.radians(latitude_deg)) * math.sin(decl) + math.cos(math.radians(latitude_deg)) * math.cos(decl) * math.cos(ha)
return SC * ZA * (1.00010 + 0.034221 * ab + 0.001280 * bc + 0.000719 * cd + 0.000077 * df) if ZA > 0 else 0.0
@check_aware_dt('when')
def declination_degree(when, TY = TY_default):
"""The declination of the sun is the angle between Earth's equatorial plane and a line
between the Earth and the sun. It varies between 23.45 degrees and -23.45 degrees,
hitting zero on the equinoxes and peaking on the solstices.
Parameters
----------
when : datetime.datetime
date/time for which to do the calculation
TY : float
Total number of days in a year. eg. 365 days per year,(no leap days)
Returns
-------
DEC : float
The declination of the Sun
References
----------
.. [1] http://pysolar.org/
"""
return constants.earth_axis_inclination * math.sin((2 * math.pi / (TY)) * ((when.utctimetuple().tm_yday) - 81))
@check_aware_dt('when')
def solarelevation_function_clear(latitude_deg, longitude_deg, when, temperature = constants.standard_temperature,
pressure = constants.standard_pressure, elevation = elevation_default):
"""Equation calculates Solar elevation function for clear sky type.
Parameters
----------
latitude_deg : float
latitude in decimal degree. A geographical term denoting
the north/south angular location of a place on a sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location
in an east-west direction,relative to the Greenwich meridian.
when : datetime.datetime
date/time for which to do the calculation
temperature : float
atmospheric temperature in kelvin
pressure : float
pressure in pascals
elevation : float
The elevation of a geographic location is its height above a fixed reference point, often the mean
sea level.
Returns
-------
SOLALTC : float
Solar elevation function clear sky
References
----------
.. [1] S. Younes, R.Claywell and el al,"Quality control of solar radiation data: present status
and proposed new approaches", energy 30 (2005), pp 1533 - 1549.
"""
altitude = solar.get_altitude(latitude_deg, longitude_deg,when, elevation, temperature,pressure)
return (0.038175 + (1.5458 * (math.sin(altitude))) + ((-0.59980) * (0.5 * (1 - math.cos(2 * (altitude))))))
@check_aware_dt('when')
def solarelevation_function_overcast(latitude_deg, longitude_deg, when,
elevation = elevation_default, temperature = constants.standard_temperature,
pressure = constants.standard_pressure):
""" The function calculates solar elevation function for overcast sky type.
This associated hourly overcast radiation model is based on the estimation of the
overcast sky transmittance with the sun directly overhead combined with the application
of an over sky elavation function to estimate the overcast day global irradiation
value at any solar elevation.
Parameters
----------
latitude_deg : float
latitude in decimal degree. A geographical term denoting the north/south angular location of a place on a
sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location in an east-west direction,relative to the
Greenwich meridian.
when : datetime.datetime
date/time for which to do the calculation
elevation : float
The elevation of a geographic location is its height above a fixed reference point, often the mean sea level.
temperature : float
atmospheric temperature in kelvin
pressure : float
pressure in pascals
Returns
-------
SOLALTO : float
Solar elevation function overcast
References
----------
.. [1] Prof. Peter Tregenza,"Solar radiation and daylight models", p.89.
.. [2] Also accessible through Google Books: http://tinyurl.com/5kdbwu
Tariq Muneer, "Solar Radiation and Daylight Models, Second Edition: For the Energy Efficient
Design of Buildings"
"""
altitude = solar.get_altitude(latitude_deg, longitude_deg,when, elevation, temperature,pressure)
return ((-0.0067133) + (0.78600 * (math.sin(altitude)))) + (0.22401 * (0.5 * (1 - math.cos(2 * altitude))))
def diffuse_transmittance(TL = TL_default):
"""Equation calculates the Diffuse_transmittance and the is the Theoretical Diffuse Irradiance on a horizontal
surface when the sun is at the zenith.
Parameters
----------
TL : float
Linke turbidity factor
Returns
-------
DT : float
diffuse_transmittance
References
----------
.. [1] S. Younes, R.Claywell and el al,"Quality control of solar radiation data: present status and proposed
new approaches", energy 30 (2005), pp 1533 - 1549.
"""
return ((-21.657) + (41.752 * (TL)) + (0.51905 * (TL) * (TL)))
@check_aware_dt('when')
def diffuse_underclear(latitude_deg, longitude_deg, when, elevation = elevation_default,
temperature = constants.standard_temperature, pressure = constants.standard_pressure, TL=TL_default):
"""Equation calculates diffuse radiation under clear sky conditions.
Parameters
----------
latitude_deg : float
latitude in decimal degree. A geographical term denoting the north/south angular location of a place on
a sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location in an east-west direction,relative to the
Greenwich meridian.
when : datetime.datetime
date/time for which to do the calculation
elevation : float
The elevation of a geographic location is its height above a fixed reference point, often the mean sea level.
temperature : float
atmospheric temperature in kelvin
pressure : float
pressure in pascals
TL : float
Linke turbidity factor
Returns
-------
DIFFC : float
Diffuse Irradiation under clear sky
References
----------
.. [1] S. Younes, R.Claywell and el al,"Quality control of solar radiation data: present status and proposed
new approaches", energy 30 (2005), pp 1533 - 1549.
"""
DT = ((-21.657) + (41.752 * (TL)) + (0.51905 * (TL) * (TL)))
altitude = solar.get_altitude(latitude_deg, longitude_deg,when, elevation, temperature,pressure)
return mean_earth_sun_distance(when) * DT * altitude
@check_aware_dt('when')
def diffuse_underovercast(latitude_deg, longitude_deg, when, elevation = elevation_default,
temperature = constants.standard_temperature, pressure = constants.standard_pressure,TL=TL_default):
"""Function calculates the diffuse radiation under overcast conditions.
Parameters
----------
latitude_deg : float
latitude in decimal degree. A geographical term denoting the north/south angular location of a place on a
sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location in an east-west direction,relative to the
Greenwich meridian.
when : datetime.datetime
date/time for which to do the calculation
elevation : float
The elevation of a geographic location is its height above a fixed reference point, often the mean sea level.
temperature : float
atmospheric temperature in kelvin
pressure : float
pressure in pascals
TL : float
Linke turbidity factor
Returns
-------
DIFOC : float
Diffuse Irradiation under overcast
References
----------
.. [1] S. Younes, R.Claywell and el al,"Quality control of solar radiation data: present status and proposed
new approaches", energy 30 (2005), pp 1533 - 1549.
"""
DT = ((-21.657) + (41.752 * (TL)) + (0.51905 * (TL) * (TL)))
DIFOC = ((mean_earth_sun_distance(when)
)*(DT)*(solar.get_altitude(latitude_deg,longitude_deg, when, elevation,
temperature, pressure)))
return DIFOC
@check_aware_dt('when')
def direct_underclear(latitude_deg, longitude_deg, when,
TY = TY_default, AM = AM_default, TL = TL_default, elevation = elevation_default,
temperature = constants.standard_temperature, pressure = constants.standard_pressure):
"""Equation calculates direct radiation under clear sky conditions.
Parameters
----------
latitude_deg : float
latitude in decimal degree. A geographical term denoting the north/south angular location of a
place on a sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location in an east-west direction,relative to the
Greenwich meridian.
when : datetime.datetime
date/time for which to do the calculation
TY : float
Total number of days in a year. eg. 365 days per year,(no leap days)
AM : float
Air mass. An Air Mass is a measure of how far light travels through the Earth's atmosphere. One air mass,
or AM1, is the thickness of the Earth's atmosphere. Air mass zero (AM0) describes solar irradiance in space,
where it is unaffected by the atmosphere. The power density of AM1 light is about 1,000 W/m^2
TL : float
Linke turbidity factor
elevation : float
The elevation of a geographic location is its height above a fixed reference point, often the mean
sea level.
temperature : float
atmospheric temperature in kelvin
pressure : float
pressure in pascals
Returns
-------
DIRC : float
Direct Irradiation under clear
References
----------
.. [1] S. Younes, R.Claywell and el al,"Quality control of solar radiation data: present status and proposed
new approaches", energy 30 (2005), pp 1533 - 1549.
"""
KD = mean_earth_sun_distance(when)
DEC = declination_degree(when,TY)
DIRC = (1367 * KD * math.exp(-0.8662 * (AM) * (TL) * (DEC)
) * math.sin(solar.get_altitude(latitude_deg,longitude_deg,
when,elevation ,
temperature , pressure )))
return DIRC
@check_aware_dt('when')
def global_irradiance_clear(latitude_deg, longitude_deg, when,
TY = TY_default, AM = AM_default, TL = TL_default, elevation = elevation_default,
temperature = constants.standard_temperature, pressure = constants.standard_pressure):
"""Equation calculates global irradiance under clear sky conditions.
Parameters
----------
latitude_deg : float
latitude in decimal degree. A geographical term denoting the north/south angular location of a place
on a sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location in an east-west direction,relative to
the Greenwich meridian.
when : datetime.datetime
date/time for which to do the calculation
temperature : float
atmospheric temperature in kelvin
pressure : float
pressure in pascals
elevation : float
The elevation of a geographic location is its height above a fixed reference point, often the
mean sea level.
TY : float
Total number of days in a year. eg. 365 days per year,(no leap days)
AM : float
Air mass. An Air Mass is a measure of how far light travels through the Earth's atmosphere. One air mass,
or AM1, is the thickness of the Earth's atmosphere. Air mass zero (AM0) describes solar irradiance in
space, where it is unaffected by the atmosphere. The power density of AM1 light is about 1,000 W/m.
TL : float
Linke turbidity factor
elevation : float
The elevation of a geographic location is its height above a fixed reference point, often the mean sea
level.
Returns
-------
ghic : float
Global Irradiation under clear sky
References
----------
.. [1] S. Younes, R.Claywell and el al,"Quality control of solar radiation data: present status and proposed
new approaches", energy 30 (2005), pp 1533 - 1549.
"""
DIRC = direct_underclear(latitude_deg, longitude_deg, when,
TY, AM, TL, elevation, temperature = constants.standard_temperature,
pressure = constants.standard_pressure)
DIFFC = diffuse_underclear(latitude_deg, longitude_deg, when,
elevation, temperature = constants.standard_temperature,
pressure= constants.standard_pressure)
ghic = (DIRC + DIFFC)
return ghic
@check_aware_dt('when')
def global_irradiance_overcast(latitude_deg, longitude_deg, when,
elevation = elevation_default, temperature = constants.standard_temperature,
pressure = constants.standard_pressure):
"""Calculated Global is used to compare to the Diffuse under overcast conditions.
Under overcast skies, global and diffuse are expected to be equal due to the absence of the beam
component.
Parameters
----------
latitude_deg : float
latitude in decimal degree. A geographical term denoting the north/south angular location of a
place on a sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location in an east-west direction,relative
to the Greenwich meridian.
when : datetime.datetime
date/time for which to do the calculation
elevation : float
The elevation of a geographic location is its height above a fixed reference point, often the
mean sea level.
temperature : float
atmospheric temperature in kelvin
pressure : float
pressure in pascals
Returns
-------
ghioc : float
Global Irradiation under overcast sky
References
----------
.. [1] S. Younes, R.Claywell and el al, "Quality
control of solar radiation data: present status
and proposed new approaches", energy 30
(2005), pp 1533 - 1549.
"""
ghioc = (572 * (solar.get_altitude(latitude_deg, longitude_deg, when,
elevation , temperature , pressure )))
return ghioc
def diffuse_ratio(DIFF_data, ghi_data):
"""Function calculates the Diffuse ratio.
Parameters
----------
DIFF_data : array_like
Diffuse horizontal irradiation data
ghi_data : array_like
global horizontal irradiation data array
Returns
-------
K : float
diffuse_ratio
References
----------
.. [1] S. Younes, R.Claywell and el al,"Quality control of solar radiation data: present status and proposed
new approaches", energy 30 (2005), pp 1533 - 1549.
"""
K = DIFF_data/ghi_data
return K
@check_aware_dt('when')
def clear_index(ghi_data, latitude_deg, longitude_deg, when):
"""This calculates the clear index ratio.
Parameters
----------
ghi_data : array_like
global horizontal irradiation data array
when : datetime.datetime
date/time for which to do the calculation
latitude_deg : float
latitude in decimal degree. A geographical term denoting the north/south angular location of a place
on a sphere.
longitude_deg : float
longitude in decimal degree. Longitude shows your location in an east-west direction,relative to the
Greenwich meridian.
Returns
-------
KT : float
Clear index ratio
References
----------
.. [1] S. Younes, R.Claywell and el al,"Quality control of solar radiation data: present status and proposed
new approaches", energy 30 (2005), pp 1533 - 1549.
"""
EXTR1 = extraterrestrial_irrad(latitude_deg, longitude_deg, when)
KT = (ghi_data / EXTR1)
return KT
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/pysolar/util.pyi 0000644 0000000 0000024 00000006000 00000000000 015140 0 ustar 00root staff # Stubs for pysolar.util (Python 3.6)
import datetime
import numpy # https://stackoverflow.com/questions/21968643/what-is-a-scalar-in-numpy https://stackoverflow.com/questions/40378427/numpy-formal-definition-of-array-like-objects
from typing import Tuple, Union
AM_default: float
TL_default: float
SC_default: float
TY_default: float
elevation_default: float
def get_sunrise_sunset_transit(latitude_deg:float, longitude_deg:float, when:datetime.datetime) -> Tuple[datetime.datetime, datetime.datetime, datetime.datetime]: ...
def get_sunrise_sunset(latitude_deg:float, longitude_deg:float, when:datetime.datetime) -> Tuple[datetime.datetime, datetime.datetime]: ...
def get_sunrise_time(latitude_deg:float, longitude_deg:float, when:datetime.datetime) -> datetime.datetime: ...
def get_sunset_time(latitude_deg:float, longitude_deg:float, when:datetime.datetime) -> datetime.datetime: ...
def get_transit_time(latitude_deg:float, longitude_deg:float, when:datetime.datetime) -> datetime.datetime: ...
def mean_earth_sun_distance(when:datetime.datetime) -> float: ...
def extraterrestrial_irrad(when:datetime.datetime, latitude_deg:float, longitude_deg:float, SC:float = ...) -> float: ...
def declination_degree(when:datetime.datetime, TY:float = ...) -> float: ...
def solarelevation_function_clear(latitude_deg:float, longitude_deg:float, when:datetime.datetime, temperature:float = ..., pressure:float = ..., elevation:float = ...) -> float: ...
def solarelevation_function_overcast(latitude_deg:float, longitude_deg:float, when:datetime.datetime, elevation:float = ..., temperature:float = ..., pressure:float = ...) -> float: ...
def diffuse_transmittance(TL:float = ...) -> float: ...
def diffuse_underclear(latitude_deg:float, longitude_deg:float, when:datetime.datetime, elevation:float = ..., temperature:float = ..., pressure:float = ..., TL:float = ...) -> float: ...
def diffuse_underovercast(latitude_deg:float, longitude_deg:float, when:datetime.datetime, elevation:float = ..., temperature:float = ..., pressure:float = ..., TL:float = ...) -> float: ...
def direct_underclear(latitude_deg:float, longitude_deg:float, when:datetime.datetime, temperature:float = ..., pressure:float = ..., TY:float = ..., AM:float = ..., TL:float = ..., elevation:float = ...) -> float: ...
def global_irradiance_clear(DIRC, DIFFC, latitude_deg:float, longitude_deg:float, when:datetime.datetime, temperature:float = ..., pressure:float = ..., TY:float = ..., AM:float = ..., TL:float = ..., elevation:float = ...) -> float: ...
def global_irradiance_overcast(latitude_deg:float, longitude_deg:float, when:datetime.datetime, elevation:float = ..., temperature:float = ..., pressure:float = ...) -> float: ...
def diffuse_ratio(DIFF_data:Union[numpy.array,numpy.ndarray,numpy.generic,float,int], ghi_data:Union[numpy.array,numpy.ndarray,numpy.generic,float,int]) -> float: ...
def clear_index(ghi_data:Union[numpy.array,numpy.ndarray,numpy.generic,float,int], when:datetime.datetime, latitude_deg:float, longitude_deg:float) -> float: ...
././@PaxHeader 0000000 0000000 0000000 00000000033 00000000000 010211 x ustar 00 27 mtime=1736004678.653911
pysolar-0.13/pysolar.egg-info/ 0000755 0000000 0000024 00000000000 00000000000 015136 5 ustar 00root staff ././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1736004678.0
pysolar-0.13/pysolar.egg-info/PKG-INFO 0000644 0000000 0000024 00000000521 00000000000 016231 0 ustar 00root staff Metadata-Version: 2.1
Name: pysolar
Version: 0.13
Summary: Collection of Python libraries for simulating the irradiation of any point on earth by the sun
Home-page: http://pysolar.org
Author: Brandon Stafford
Author-email: brandon@pingswept.org
License: GNU General Public License (GPL)
Platform: UNKNOWN
License-File: COPYING
UNKNOWN
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1736004678.0
pysolar-0.13/pysolar.egg-info/SOURCES.txt 0000644 0000000 0000024 00000001216 00000000000 017022 0 ustar 00root staff COPYING
MANIFEST.in
setup.py
pysolar/__init__.py
pysolar/__init__.pyi
pysolar/constants.py
pysolar/constants.pyi
pysolar/elevation.py
pysolar/elevation.pyi
pysolar/numeric.py
pysolar/radiation.py
pysolar/radiation.pyi
pysolar/rest.py
pysolar/simulate.py
pysolar/simulate.pyi
pysolar/solar.py
pysolar/solar.pyi
pysolar/solartime.py
pysolar/solartime.pyi
pysolar/tzinfo_check.py
pysolar/util.py
pysolar/util.pyi
pysolar.egg-info/PKG-INFO
pysolar.egg-info/SOURCES.txt
pysolar.egg-info/dependency_links.txt
pysolar.egg-info/requires.txt
pysolar.egg-info/top_level.txt
test/test_datetime_tzinfo.py
test/test_hour_angle.py
test/test_numpy.py
test/test_solar.py ././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1736004678.0
pysolar-0.13/pysolar.egg-info/dependency_links.txt 0000644 0000000 0000024 00000000001 00000000000 021204 0 ustar 00root staff
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1736004678.0
pysolar-0.13/pysolar.egg-info/requires.txt 0000644 0000000 0000024 00000000006 00000000000 017532 0 ustar 00root staff numpy
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1736004678.0
pysolar-0.13/pysolar.egg-info/top_level.txt 0000644 0000000 0000024 00000000010 00000000000 017657 0 ustar 00root staff pysolar
././@PaxHeader 0000000 0000000 0000000 00000000034 00000000000 010212 x ustar 00 28 mtime=1736004678.6552975
pysolar-0.13/setup.cfg 0000644 0000000 0000024 00000000046 00000000000 013574 0 ustar 00root staff [egg_info]
tag_build =
tag_date = 0
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1736004067.0
pysolar-0.13/setup.py 0000644 0000000 0000024 00000002150 00000000000 013463 0 ustar 00root staff from distutils.core import setup
import setuptools
classifiers = ['Development Status :: 5 - Production/Stable',
'Environment :: Console',
'Intended Audience :: Developers',
'Intended Audience :: Science/Research',
'License :: OSI Approved :: GNU General Public License (GPL)',
'Natural Language :: English',
'Operating System :: OS Independent',
'Programming Language :: Python',
'Topic :: Scientific/Engineering',
'Topic :: Scientific/Engineering :: Atmospheric Science',
'Topic :: Scientific/Engineering :: Mathematics',
'Topic :: Software Development :: Libraries :: Python Modules',
'Programming Language :: Python :: 3']
setup(name='pysolar',
version='0.13',
description='Collection of Python libraries for simulating the irradiation of any point on earth by the sun',
author='Brandon Stafford',
author_email='brandon@pingswept.org',
license = 'GNU General Public License (GPL)',
url='http://pysolar.org',
packages=['pysolar'],
package_data = {"pysolar": ["*.pyi"]}, # *.py is included in any case
install_requires = ['numpy'],
)
././@PaxHeader 0000000 0000000 0000000 00000000033 00000000000 010211 x ustar 00 27 mtime=1736004678.654814
pysolar-0.13/test/ 0000755 0000000 0000024 00000000000 00000000000 012732 5 ustar 00root staff ././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/test/test_datetime_tzinfo.py 0000644 0000000 0000024 00000027507 00000000000 017543 0 ustar 00root staff # Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
"""This test file makes sure that every function that requires
'datetime.datetime' objects as parameters
receives only timezone-aware ones.
"""
from pysolar import solar
from pysolar import solartime
from pysolar import util
import datetime
import unittest
from pysolar.tzinfo_check import NoTimeZoneInfoError
import numpy as np
class TestErrorTimeZoneIsNone(unittest.TestCase):
unaware = datetime.datetime(2000, 1, 1)
lat = 1.0
lon = 1.0
def test_solar_topocentric_position_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solar.get_topocentric_position(self.lat, self.lon, self.unaware)
def test_solar_get_position_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solar.get_position(self.lat, self.lon, self.unaware)
def test_solar_get_altitude_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solar.get_altitude(self.lat, self.lon, self.unaware)
def test_solar_get_altitude_fast_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solar.get_altitude_fast(self.lat, self.lon, self.unaware)
def test_solar_get_azimuth_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solar.get_azimuth(self.lat, self.lon, self.unaware)
def test_solar_get_azimuth_fast_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solar.get_azimuth_fast(self.lat, self.lon, self.unaware)
def test_solar_get_hour_angle_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solar.get_hour_angle(self.unaware, self.lon)
def test_solar_get_solar_time_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solar.get_hour_angle(self.unaware, self.lon)
def test_solartime_get_leap_seconds_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solartime.get_leap_seconds(self.unaware)
def test_solartime_get_delta_t_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solartime.get_delta_t(self.unaware)
def test_solartime_get_julian_solar_day_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solartime.get_julian_solar_day(self.unaware)
def test_solartime_get_julian_ephemeris_day_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solartime.get_julian_ephemeris_day(self.unaware)
def test_util_get_sunrise_sunset_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.get_sunrise_sunset(self.lat, self.lon, self.unaware)
def test_util_get_sunrise_time_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.get_sunrise_time(self.lat, self.lon, self.unaware)
def test_util_get_sunset_time_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.get_sunset_time(self.lat, self.lon, self.unaware)
def test_util_get_transit_time_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.get_transit_time(self.lat, self.lon, self.unaware)
def test_util_mean_earth_sun_distance_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.mean_earth_sun_distance(self.unaware)
def test_util_extraterrestrial_irrad_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.extraterrestrial_irrad(self.lat, self.lon, self.unaware)
def test_util_declination_degree_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.declination_degree(self.unaware)
def test_util_solarelevation_function_overcast_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.solarelevation_function_overcast(self.lat, self.lon, self.unaware)
def test_util_diffuse_underclear_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.diffuse_underclear(self.lat, self.lon, self.unaware)
def test_util_diffuse_underovercast_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.diffuse_underovercast(self.lat, self.lon, self.unaware)
def test_util_direct_underclear_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.direct_underclear(self.lat, self.lon, self.unaware)
def test_util_global_irradiance_clear_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.global_irradiance_clear(self.lat, self.lon, self.unaware)
def test_util_global_irradiance_overcast_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
util.global_irradiance_overcast(self.lat, self.lon, self.unaware)
def test_util_clear_index_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
ghi_data = np.asarray([0, 0]) # Don't know what ghi_data is supposed to be
util.clear_index(ghi_data, self.lat, self.lon, self.unaware)
class TestTimeZoneNotNone(unittest.TestCase):
aware = datetime.datetime(2000, 1, 1, tzinfo=datetime.timezone.utc)
lat = 1.0
lon = 1.0
def test_solar_topocentric_position_no_error(self):
try:
solar.get_topocentric_position(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solar_get_position_no_error(self):
try:
solar.get_position(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solar_get_altitude_no_error(self):
try:
solar.get_altitude(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solar_get_altitude_fast_no_error(self):
try:
solar.get_altitude_fast(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solar_get_azimuth_no_error(self):
try:
solar.get_azimuth(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solar_get_azimuth_fast_no_error(self):
try:
solar.get_azimuth_fast(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solar_get_hour_angle_no_error(self):
try:
solar.get_hour_angle(self.aware, self.lon)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solar_get_solar_time_no_error(self):
try:
solar.get_hour_angle(self.aware, self.lon)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solartime_get_leap_seconds_no_error(self):
try:
solartime.get_leap_seconds(self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solartime_get_delta_t_no_error(self):
try:
solartime.get_delta_t(self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solartime_get_julian_solar_day_no_error(self):
try:
solartime.get_julian_solar_day(self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_solartime_get_julian_ephemeris_day_no_error(self):
try:
solartime.get_julian_ephemeris_day(self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_get_sunrise_sunset_no_error(self):
try:
util.get_sunrise_sunset(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_get_sunrise_time_no_error(self):
try:
util.get_sunrise_time(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_get_sunset_time_no_error(self):
try:
util.get_sunset_time(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_mean_earth_sun_distance_no_error(self):
try:
util.mean_earth_sun_distance(self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_extraterrestrial_irrad_no_error(self):
try:
util.extraterrestrial_irrad(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_declination_degree_no_error(self):
try:
util.declination_degree(self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_solarelevation_function_overcast_no_error(self):
try:
util.solarelevation_function_overcast(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_diffuse_underclear_no_error(self):
try:
util.diffuse_underclear(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_diffuse_underovercast_no_error(self):
try:
util.diffuse_underovercast(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_direct_underclear_no_error(self):
try:
util.direct_underclear(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_global_irradiance_clear_no_error(self):
try:
util.global_irradiance_clear(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_global_irradiance_overcast_no_error(self):
try:
util.global_irradiance_overcast(self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
def test_util_clear_index(self):
try:
ghi_data = np.asarray([0, 0]) # Don't know what ghi_data is supposed to be
util.clear_index(ghi_data, self.lat, self.lon, self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/test/test_hour_angle.py 0000644 0000000 0000024 00000004470 00000000000 016473 0 ustar 00root staff '''
Created on Aug 13, 2015
@author: rene
'''
import unittest
import datetime
from pysolar.solar import *
from pysolar.solartime import *
class Test(unittest.TestCase):
def setUp(self):
pass
def tearDown(self):
pass
def testHourAngle(self):
'''
Example 1.6.1 from Book "Solar Engineering of Thermal Processes by Duffie and Beckman, fourth edition, Wiley 2013"
hour angle should be -22.5. (-22.5 % 360.0 = 337.5)
'''
tz = datetime.timezone(datetime.timedelta(hours=-6))
when = datetime.datetime(2008, 2, 13, 10, 42, tzinfo=tz)
latitude_deg = 43.076342
longitude_deg = -89.384448
'''
Hour angle from get_hour_angle
'''
ha = get_hour_angle(when, longitude_deg)
'''Hour angle as in pysolar.solar.get_altitude'''
# time-dependent calculations
jd = get_julian_solar_day(when)
jde = get_julian_ephemeris_day(when)
jce = get_julian_ephemeris_century(jde)
jme = get_julian_ephemeris_millennium(jce)
geocentric_latitude = get_geocentric_latitude(jme)
geocentric_longitude = get_geocentric_longitude(jme)
sun_earth_distance = get_sun_earth_distance(jme)
aberration_correction = get_aberration_correction(sun_earth_distance)
nutation = get_nutation(jce)
apparent_sidereal_time = get_apparent_sidereal_time(jd, jme, nutation)
true_ecliptic_obliquity = get_true_ecliptic_obliquity(jme, nutation)
# calculations dependent on location and time
apparent_sun_longitude = get_apparent_sun_longitude(
geocentric_longitude,
nutation,
aberration_correction)
geocentric_sun_right_ascension = get_geocentric_sun_right_ascension(
apparent_sun_longitude,
true_ecliptic_obliquity,
geocentric_latitude)
local_hour_angle = get_local_hour_angle(
apparent_sidereal_time,
longitude_deg,
geocentric_sun_right_ascension)
reference_ha = -22.5 % 360.0
self.assertAlmostEqual(local_hour_angle % 360.0, ha % 360.0, places=0)
self.assertAlmostEqual(reference_ha % 360.0, ha % 360.0, places=0)
if __name__ == "__main__":
#import sys;sys.argv = ['', 'Test.testName']
unittest.main()
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/test/test_numpy.py 0000644 0000000 0000024 00000006045 00000000000 015520 0 ustar 00root staff import pysolar
from pysolar import radiation, solar
from pysolar import numeric as math
import datetime
import numpy as np
from nose.tools import raises, assert_equal
@raises(TypeError)
def test_fail_with_math():
pysolar.use_math()
lat = np.array([45., 40.])
lon = np.array([3., 4.])
time = datetime.datetime(2018, 5, 8, 12, 0, 0, tzinfo=datetime.timezone.utc)
solar.get_altitude(lat, lon, time)
def test_scalar_with_math():
pysolar.use_math()
lat = 45.
lon = 3.
time = datetime.datetime(2018, 5, 8, 12, 0, 0, tzinfo=datetime.timezone.utc)
print(solar.get_altitude(lat, lon, time))
print(solar.get_azimuth(lat, lon, time))
def test_scalar_with_numpy():
pysolar.use_numpy()
lat = 50.63
lon = 3.05
time = datetime.datetime(2018, 5, 8, 12, 0, 0, tzinfo=datetime.timezone.utc)
print(solar.get_altitude(lat, lon, time))
print(solar.get_azimuth(lat, lon, time))
def test_with_fixed_time():
""" get_altitude and get_azimuth, with scalar date """
pysolar.use_numpy()
lat = np.array([45., 40.])
lon = np.array([3., 4.])
time = datetime.datetime(2018, 5, 8, 12, 0, 0, tzinfo=datetime.timezone.utc)
print(solar.get_altitude(lat, lon, time))
print(solar.get_azimuth(lat, lon, time))
print(solar.get_altitude_fast(lat, lon, time))
print(solar.get_azimuth_fast(lat, lon, time))
def test_with_fixed_position():
""" get_altitude and get_azimuth, with scalar position """
pysolar.use_numpy()
lat = 50.
lon = 3.
time = np.array(['2018-05-08T12:15:00',
'2018-05-08T15:00:00'], dtype='datetime64')
print(solar.get_altitude_fast(lat, lon, time))
print(solar.get_azimuth_fast(lat, lon, time))
def test_datetime_operations():
d0 = datetime.datetime(2018,5,8,12,0,0)
d1 = np.array(d0)
assert_equal(math.tm_yday_math(d0),
math.tm_yday_numpy(d1))
assert_equal(math.tm_hour_math(d0),
math.tm_hour_numpy(d1))
assert_equal(math.tm_min_math(d0),
math.tm_min_numpy(d1))
def test_numpy():
""" get_altitude and get_azimuth, with lat, lon and date arrays """
pysolar.use_numpy()
lat = np.array([45., 40.])
lon = np.array([3., 4.])
time = np.array(['2018-05-08T12:15:00',
'2018-05-08T15:00:00'], dtype='datetime64')
print(solar.get_altitude_fast(lat, lon, time))
print(solar.get_azimuth_fast(lat, lon, time))
def test_numpy_radiation():
"""
get_radiation_direct with lat, lon, and date as arrays
"""
pysolar.use_numpy()
lat = np.array([45., 40., 40.])
lon = np.array([3., 4., 3.])
time = np.array([
'2018-05-08T12:15:00',
'2018-05-08T15:00:00',
'2018-05-08T03:00:00',
], dtype='datetime64')
altitude = solar.get_altitude_fast(lat, lon, time)
rad_results = radiation.get_radiation_direct(time, altitude)
assert rad_results[2] == 0
print(rad_results)
././@PaxHeader 0000000 0000000 0000000 00000000026 00000000000 010213 x ustar 00 22 mtime=1735949444.0
pysolar-0.13/test/test_solar.py 0000755 0000000 0000024 00000025131 00000000000 015470 0 ustar 00root staff #!/usr/bin/python3
# Library for calculating location of the sun
# Copyright Brandon Stafford
#
# This file is part of Pysolar.
#
# Pysolar is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Pysolar is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with Pysolar. If not, see .
from pysolar import \
solar, \
constants, \
solartime as stime, \
elevation
import datetime
import unittest
class TestSolar(unittest.TestCase):
def setUp(self):
self.d = datetime.datetime(2003, 10, 17, 19, 30, 30, tzinfo = datetime.timezone.utc) # only works with Python 3
self.d += datetime.timedelta(seconds = stime.get_delta_t(self.d) - stime.tt_offset - stime.get_leap_seconds(self.d))
# Reda & Andreas say that this time is in "Local Standard Time", which they
# define as 7 hours behind UT (not UTC). Hence the adjustment to convert UT
# to UTC.
self.longitude = -105.1786
self.latitude = 39.742476
self.pressure = 82000.0 # pascals
self.elevation = 1830.14 # meters
self.temperature = 11.0 + constants.celsius_offset # kelvin
self.slope = 30.0 # degrees
self.slope_orientation = -10.0 # degrees east from south
self.jd = stime.get_julian_solar_day(self.d)
self.jc = stime.get_julian_century(self.jd)
self.jde = stime.get_julian_ephemeris_day(self.d)
self.jce = stime.get_julian_ephemeris_century(self.jde)
self.jme = stime.get_julian_ephemeris_millennium(self.jce)
self.geocentric_longitude = solar.get_geocentric_longitude(self.jme)
self.geocentric_latitude = solar.get_geocentric_latitude(self.jme)
self.nutation = solar.get_nutation(self.jce)
self.sun_earth_distance = solar.get_sun_earth_distance(self.jme)
self.true_ecliptic_obliquity = solar.get_true_ecliptic_obliquity(self.jme, self.nutation)
self.aberration_correction = solar.get_aberration_correction(self.sun_earth_distance)
self.apparent_sun_longitude = solar.get_apparent_sun_longitude(self.geocentric_longitude, self.nutation, self.aberration_correction)
self.apparent_sidereal_time = solar.get_apparent_sidereal_time(self.jd, self.jme, self.nutation)
self.geocentric_sun_right_ascension = solar.get_geocentric_sun_right_ascension(self.apparent_sun_longitude, self.true_ecliptic_obliquity, self.geocentric_latitude)
self.geocentric_sun_declination = solar.get_geocentric_sun_declination(self.apparent_sun_longitude, self.true_ecliptic_obliquity, self.geocentric_latitude)
self.local_hour_angle = solar.get_local_hour_angle(318.5119, self.longitude, self.geocentric_sun_right_ascension) #self.apparent_sidereal_time only correct to 5 sig figs, so override
self.equatorial_horizontal_parallax = solar.get_equatorial_horizontal_parallax(self.sun_earth_distance)
self.projected_radial_distance = solar.get_projected_radial_distance(self.elevation, self.latitude)
self.projected_axial_distance = solar.get_projected_axial_distance(self.elevation, self.latitude)
self.topocentric_sun_right_ascension = solar.get_topocentric_sun_right_ascension(self.projected_radial_distance,
self.equatorial_horizontal_parallax, self.local_hour_angle, self.apparent_sun_longitude, self.true_ecliptic_obliquity, self.geocentric_latitude)
self.parallax_sun_right_ascension = solar.get_parallax_sun_right_ascension(self.projected_radial_distance, self.equatorial_horizontal_parallax, self.local_hour_angle, self.geocentric_sun_declination)
self.topocentric_sun_declination = solar.get_topocentric_sun_declination(self.geocentric_sun_declination, self.projected_axial_distance, self.equatorial_horizontal_parallax, self.parallax_sun_right_ascension, self.local_hour_angle)
self.topocentric_local_hour_angle = solar.get_topocentric_local_hour_angle(self.local_hour_angle, self.parallax_sun_right_ascension)
self.topocentric_zenith_angle = solar.get_topocentric_zenith_angle(self.latitude, self.topocentric_sun_declination, self.topocentric_local_hour_angle, self.pressure, self.temperature)
self.topocentric_azimuth_angle = solar.get_topocentric_azimuth_angle(self.topocentric_local_hour_angle, self.latitude, self.topocentric_sun_declination)
self.incidence_angle = solar.get_incidence_angle(self.topocentric_zenith_angle, self.slope, self.slope_orientation, self.topocentric_azimuth_angle)
self.pressure_with_elevation = elevation.get_pressure_with_elevation(1567.7)
self.temperature_with_elevation = elevation.get_temperature_with_elevation(1567.7)
def test_get_julian_solar_day(self):
self.assertAlmostEqual(2452930.312847, self.jd, 6) # value from Reda and Andreas (2005)
def test_get_julian_ephemeris_day(self):
self.assertAlmostEqual(2452930.3136, self.jde, 4) # value not validated
def test_get_julian_century(self):
self.assertAlmostEqual(0.03792779869191517, self.jc, 12) # value not validated
def test_get_julian_ephemeris_millennium(self):
self.assertAlmostEqual(0.0037927819143886397, self.jme, 12) # value not validated
def test_get_geocentric_longitude(self):
# self.assertAlmostEqual(204.0182635175, self.geocentric_longitude, 10) # value from Reda and Andreas (2005)
self.assertAlmostEqual(204.0182635175, self.geocentric_longitude, 4) # above fails with more accurate Julian Ephemeris correction
def test_get_geocentric_latitude(self):
# self.assertAlmostEqual(0.0001011219, self.geocentric_latitude, 9) # value from Reda and Andreas (2005)
self.assertAlmostEqual(0.0001011219, self.geocentric_latitude, 8) # above fails with more accurate Julian Ephemeris correction
def test_get_nutation(self):
self.assertAlmostEqual(0.00166657, self.nutation['obliquity'], 8) # value from Reda and Andreas (2005)
self.assertAlmostEqual(-0.00399840, self.nutation['longitude'], 8) # value from Reda and Andreas (2005)
def test_get_sun_earth_distance(self):
self.assertAlmostEqual(0.9965421031, self.sun_earth_distance, 6) # value from Reda and Andreas (2005)
def test_get_true_ecliptic_obliquity(self):
self.assertAlmostEqual(23.440465, self.true_ecliptic_obliquity, 6) # value from Reda and Andreas (2005)
def test_get_aberration_correction(self):
self.assertAlmostEqual(-0.005711359, self.aberration_correction, 9) # value not validated
def test_get_apparent_sun_longitude(self):
# self.assertAlmostEqual(204.0085537528, self.apparent_sun_longitude, 10) # value from Reda and Andreas (2005)
self.assertAlmostEqual(204.0085537528, self.apparent_sun_longitude, 4) # above fails with more accurate Julian Ephemeris correction
def test_get_apparent_sidereal_time(self):
self.assertAlmostEqual(318.5119, self.apparent_sidereal_time, 2) # value derived from Reda and Andreas (2005)
def test_get_geocentric_sun_right_ascension(self):
self.assertAlmostEqual(202.22741, self.geocentric_sun_right_ascension, 4) # value from Reda and Andreas (2005)
def test_get_geocentric_sun_declination(self):
self.assertAlmostEqual(-9.31434, self.geocentric_sun_declination, 4) # value from Reda and Andreas (2005)
def test_get_local_hour_angle(self):
self.assertAlmostEqual(11.105900, self.local_hour_angle, 4) # value from Reda and Andreas (2005)
def test_get_projected_radial_distance(self):
self.assertAlmostEqual(0.7702006, self.projected_radial_distance, 6) # value not validated
def test_get_topocentric_sun_right_ascension(self):
self.assertAlmostEqual(202.22741, self.topocentric_sun_right_ascension, 3) # value from Reda and Andreas (2005)
def test_get_parallax_sun_right_ascension(self):
self.assertAlmostEqual(-0.0003659912761437859, self.parallax_sun_right_ascension, 12) # value not validated
def test_get_topocentric_sun_declination(self):
self.assertAlmostEqual(-9.316179, self.topocentric_sun_declination, 3) # value from Reda and Andreas (2005)
def test_get_topocentric_local_hour_angle(self):
self.assertAlmostEqual(11.10629, self.topocentric_local_hour_angle, 4) # value from Reda and Andreas (2005)
def test_get_topocentric_zenith_angle(self):
self.assertAlmostEqual(50.11162, self.topocentric_zenith_angle, 3) # value from Reda and Andreas (2005)
def test_get_topocentric_azimuth_angle(self):
# self.assertAlmostEqual(194.34024, self.topocentric_azimuth_angle, 5) # value from Reda and Andreas (2005)
self.assertAlmostEqual(194.34024, self.topocentric_azimuth_angle, 4) # above fails with more accurate Julian Ephemeris correction
def test_get_incidence_angle(self):
self.assertAlmostEqual(25.18700, self.incidence_angle, 3) # value from Reda and Andreas (2005)
def testPressureWithElevation(self):
self.assertAlmostEqual(83855.90228, self.pressure_with_elevation, 4)
def testTemperatureWithElevation(self):
self.assertAlmostEqual(277.9600, self.temperature_with_elevation, 4)
class TestApi(unittest.TestCase):
test_when = datetime.datetime(2016, 12, 19, 23, 0, 0, tzinfo=datetime.timezone.utc)
def testGetPosition(self):
az, al = solar.get_position(59.6365662,12.5350953, TestApi.test_when)
self.assertAlmostEqual(az, 357.1431414)
self.assertAlmostEqual(al, -53.7672217)
az, al = solar.get_position(-43, 172, TestApi.test_when)
self.assertAlmostEqual(az, 50.50035708)
self.assertAlmostEqual(al, 63.0922036)
# From Greenwich
az, al = solar.get_position(51.4826, 0, TestApi.test_when)
self.assertAlmostEqual(az, 333.04037976)
self.assertAlmostEqual(al, -59.83724345)
def testGetAltitude(self):
al = solar.get_altitude(-43, 172, TestApi.test_when)
self.assertAlmostEqual(al, 63.0922036)
def testGetAzimuth(self):
az = solar.get_azimuth(-43, 172, TestApi.test_when)
self.assertAlmostEqual(az, 50.50035708)
def testGetAltitudeFast(self):
# location is in NZ, use relevant timezone
day = datetime.datetime(
2016, 12, 19, 0, 0,
tzinfo=datetime.timezone(datetime.timedelta(hours=12)))
for hour in range(7, 19):
when = day + datetime.timedelta(hours=hour)
al = solar.get_altitude_fast(-43, 172, when)
al_expected = solar.get_altitude(-43, 172, when)
self.assertAlmostEqual(al, al_expected, delta=1)
def testGetAzimuthFast(self):
day = datetime.datetime(
2016, 12, 19, 0, 0,
tzinfo=datetime.timezone(datetime.timedelta(hours=12)))
for hour in range(7, 19):
when = day + datetime.timedelta(hours=hour)
az = solar.get_azimuth_fast(-43, 172, when)
az_expected = solar.get_azimuth(-43, 172, when)
self.assertAlmostEqual(az, az_expected, delta=1.5)
if __name__ == "__main__":
unittest.main(verbosity=2)