LICENSE.txt

LICENSE for the Tracker Component Library, Version 6.1.1

All of the data included is in the public domain and was obtained from U.S
Government servers, with the exceptions of the Hipparcos 2 Catalog, the
Earth2014 model, and the GSHHG model. The Earth2014 model was produced by
researchers at Curtin University in Australia. The file
"./Terrain/data/Earth2014 License.txt" shows the statement provided
declaring it to be in the public domain. The Hipparcos 2 catalog is
maintained by the European Space Agency at
http://www.cosmos.esa.int/web/hipparcos/home
The catalog forms the basis of a number of international standards and is
in the public domain, as verified by the Hipparcos helpdesk, whose contact
information is available at the aforementioned web site. Data for the GSHHG
model is generally not distributed with the library and is under a license
with a weak copyleft, as noted on
https://www.ngdc.noaa.gov/mgg/shorelines/

All of the source code in the 3rd_Party_Libraries folder has copyleft-free
licenses, which are included with the code. The other source code is either
not subject to copyright (because it was made entirely by US government
employees) or is present under an MIT license.

Code that is not subject to copyright has the following license written at
the bottom of each file:
"
The source code is in the public domain and not licensed or under
copyright. The information and software may be used freely by the public.
As required by 17 U.S.C. 403, third parties producing copyrighted works
consisting predominantly of the material produced by U.S. government
agencies must provide notice with such work(s) identifying the U.S.
Government material incorporated and stating that such material is not
subject to copyright protection.

Derived works shall not identify themselves in a manner that implies an
endorsement by or an affiliation with the Naval Research Laboratory.

RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF THE
SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY THE NAVAL
RESEARCH LABORATORY FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE ACTIONS
OF RECIPIENT IN THE USE OF THE SOFTWARE.
"

For code that is under an MIT license,  all of the copyrights except for
the file MMOSPA2Tar2D belong to the United States Government as represented
by the Secretary of Navy. For the MMOSPA2Tar2D function, the file is
Copyright 2023, Marcus Baum (University of Göttingen).

The wording of the MIT license is:

"
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit
persons to whom the Software is furnished to do so, subject to the
following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.
"