Nyx is a high fidelity, fast, reliable and validated astrodynamics toolkit library written in Rust and available in Python

OREKIT is a free low level space dynamics library written in Java. Please visit our Gitlab instance for issues and contributions: https://gitlab.orekit.org

determination of satellite orbits and more

Orbit Determination with Python

Orbit determination from observations

Useful programs for orbital mechanics

The React codebase for space-sustainability tool TruSat

Software for precise orbit determination of Low Earth Orbiters and gravity field recovery

🛰️Orbital Object Toolkit including Multiple Propagators, Initial Orbit Determination, and Maneuver Calculations.

A simple orbit determination package (kalman filter estimation), which I coded for my master's thesis

Space Object RADar SIMulator

Orbit Determination with optical observations

OrbMod (Orbit Modeling) - tools for numerical modeling of orbits: propagation and fitting to observations.

Some Orbital Mechanics Matlab Codes. Heavily based on the "Orbital Mechanics for Engineers, Howard D. Curtis" book.

Gauss-Radau Small-body Simulator. Maintainer: @rahil-makadia

TikZ drawings of bistatic radar & astrodynamics scenarios

This project allows the user to simulate the trajectories of objects in space inside of a browser window using fundamental astrodynamics calculations.

Orbit determination of OPS-SAT-1 based on Doppler shifts observations (M.Sc. thesis topic)

Python for Orbital Mechanics