NASA Trick Simulation Environment
NASA’s open simulation environment for model integration, execution control, data recording, and analysis.
NASA Open MCT
A web-based, open-source mission-control and data-visualization framework developed at NASA Ames.
Yamcs
An open-source mission-control framework for telemetry, commanding, automation, and spacecraft operations.
Skyfield
A production-stable MIT-licensed Python library for precise positions of planets, stars, and Earth satellites.
FreeFlyer
Commercial astrodynamics software for space mission design, analysis, and operations across the mission lifecycle.
Basilisk
An open-source astrodynamics and spacecraft simulation framework for research, GNC, and hardware-in-the-loop work.
TudatPy
TU Delft’s open-source Python interface for numerical astrodynamics, propagation, estimation, and space research.