Copernicus
NASA’s high-fidelity trajectory design and optimization system for Earth, lunar, libration-point, and interplanetary missions.
ESA SNAP
ESA’s open-source desktop platform and toolboxes for processing Sentinel and other Earth-observation data.
Orfeo ToolBox
An Apache-licensed toolkit from CNES for large-scale remote-sensing image processing in C++, Python, and command-line workflows.
QGIS
A free and open-source geographic information system widely used for Earth-observation and geospatial analysis.
NASA Core Flight System (cFS)
NASA Goddard’s open-source flight-software framework bundle and common applications for spacecraft systems.
NASA Operational Simulator for Space Systems (NOS3)
A NASA open-source digital-twin and software-simulation environment for spacecraft integration and test.
NASA Trick Simulation Environment
NASA’s open simulation environment for model integration, execution control, data recording, and analysis.
FreeFlyer
Commercial astrodynamics software for space mission design, analysis, and operations across the mission lifecycle.
Meridian
A modern flight dynamics ground-system solution for satellite operations, powered by FreeFlyer.