Want to use GMAT? These resources will help you learn the system.
Want to help us develop GMAT? These resources will help you effectively contribute or reach out to others involved.
Want to know how we work? These resources describe our processes and policies.
Reach out to other collaborators.
Welcome to GMAT
Do you want to go Mars but don't know when to leave or how much to bring? Do you want to land something on the moon? The General Mission Analysis Tool (GMAT) is an open-source space mission analysis tool to answer just those types of questions. GMAT is developed by a team of NASA, private industry, public, and private contributors. GMAT is intended both for real-world engineering design studies and as a tool for education and public engagement in the spirit of the NASA Charter.
This wiki contains many resources for GMAT users and developers. It is intended for collaboration! If you see anything wrong with any of the pages on this wiki, or wish to add GMAT-related information on your own, please feel free to contribute.
GMAT and Space Mission Design
GMAT is designed to model, optimize, and estimate spacecraft trajectories in flight regimes ranging from low Earth orbit to lunar applications, interplanetary trajectories, and other deep space missions. Analysts model spacemissions in GMAT by first creating resources such as spacecraft, propagators, estimators, and optimizers. A figure of the resource tree for a lunar transfer application is shown in Fig. (1). Resources can be
configured to meet the needs of specific applications and missions. GMAT contains an extensive set of available Resources that can be broken down into physical model Resources and analysis model Resources. Physical Resources include spacecraft, thruster, tank, transmitter*, transponder*, antenna*, receiver*, ground station, formation, impulsive burn, finite burn, planet, comet, asteroid, moon, barycenter, libration point, measurement model*, and measurement simulator*. Analysis model Resources include differential corrector, propagator, optimizer ,estimator*, 3-D graphic, x-y plot, report file, ephemeris file, user-defined variable, array, and string, coordinate system, custom subroutine, MATLAB function, and data