GMAT R2018a Released

May 14, 2018

GMAT R2018a has passed final testing and is now available for download from SourceForge. This release is a significant update to the system, incorporating many new features that enhance its usability in analysis and operations.

The new release supports operations for the following NASA missions:

  • The Solar Dynamics Observatory (SDO) mission: Maneuver planning and product generation.
  • The Solar and Heliospheric Observatory (SOHO) mission: Orbit determination.
  • The Advanced Composition Explorer (ACE) mission: Maneuver planning, orbit determination, and product generation.
  • The WIND mission: Maneuver planning, orbit determination, and product generation.
  • The Transiting Exoplanet Survey Satellite (TESS) mission: Mission design and maneuver planning.
  • The Lunar Reconnaissance Orbiter (LRO) mission: Orbit determination.

The new features incorporated into GMAT R2018a include:

  • GMAT now contains a built-in optimizer called Yukon, developed by the GMAT team. The optimizer uses an SQP line search algorithm with an active set QP-subproblem algorithm. Yukon is designed for small scale problems, in settings that could be optimized using the VF13ad optimizer in earlier GMAT releases. Yukon is not appropriate for large, sparse optimization problems.
  • GMAT's Estimation System has been enhanced with these major features:
    • Extended precision time has been implemented surgically to improve estimation.
    • A "freeze" feature that stops data editing after a specified number of batch iterations.
    • GMAT now implements and allows selection of the Marini troposperic model.
  • GMAT now extends the plug-in interfaces to include GUI plug-in components.

Additional new features can be found on the GMAT R2018a release notes. Thinking Systems is proud to have participated in development of all of these features.