Getting Started

System Prerequisites

SSAPy has the following minimum system requirements, which are assumed to be present on the machine where SSAPy is run:

System prerequisites for SSAPy
Name	Supported Versions	Requirement Reason
Python	3.8–3.11	Interpreter
C/C++ Compilers		Building software
make		Build software
git		Manage software repositories
git-lfs		Track large binary files
graphviz		Local documentation building

These requirements can be easily installed on most modern macOS and Linux systems.

apt update
apt install build-essential git git-lfs python3 python3-distutils python3-venv graphviz

dnf install epel-release
dnf group install "Development Tools"
dnf install git git-lfs gcc-gfortran python3 python3-pip python3-setuptools graphviz

brew update
brew install gcc git git-lfs python3 graphviz

As the package has been published on PyPI, it can be installed using pip.

pip install llnl-ssapy

Orekit is an optional dependency, including the Orekit Python wrapper that is hard to find. Clone the python wrappper from here:

https://gitlab.orekit.org/orekit-labs/python-wrapper

Alternatively, the Orekit python wrapper can be installed from Anaconda.