GRSS: Gauss-Radau Small-body Simulator
Project description
grss
GRSS (pronounced "grass"), the Gauss-Radau Small-body Simulator is a Python package with a C++ binding for propagating and fitting the orbits of small bodies in the solar system, such as asteroids and comets.
Getting Started
There are currently two different ways to install the GRSS library.
- Using the Python Package Index (PyPI)
- Using the source code from the GitHub repository
Install via PyPI
The GRSS library is available on PyPI and can be installed using the following command:
pip install grss
Install via source code
The source code for the GRSS library is available on GitHub and can be downloaded using the following command:
git clone https://www.github.com/rahil-makadia/grss
Once the source code has been downloaded, the library can be installed using the following command:
python setup.py install
Usage
Once the GRSS library has been installed, it can be imported into a Python script using the following command:
import grss
The first time the library is imported, it will download some data files such as NAIF SPICE kernels and the data needed to debias optical astrometry. This should not take more than a couple minutes, and if the download was completed, the following message will be printed:
YYYY-MM-DD HH:MM:SS URL:url-of-downloaded-file [filesize] -> path/to/downloaded/file [1]
Once these files are available to the library, you are ready to use GRSS to its full potential!
Check out the examples on the GRSS website to get started.
Acknowledgements
GRSS Development Team:
- Rahil Makadia
- Steven R. Chesley
- Siegfried Eggl
- Davide Farnocchia
The GRSS library was developed by Rahil Makadia as part of his PhD dissertation at the University of Illinois at Urbana-Champaign. This work was supported by a NASA Space Technologies Graduate Research Opportunities (NSTGRO) Fellowship, Grant #80NSSC22K1173. The author would like to thank his advisor, Dr. Siegfried Eggl as well as his collaborators, Dr. Steven R. Chesley, and Dr. Davide Farnocchia for their guidance and support.
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