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The o pen-architecture flight software package provides solutions for onboard orbit determination.
Goddard Space Flight Center, Greenbelt, Maryland
While real-time positioning computed by standard GPS service is adequate for some onboard applications, inherent position discontinuities are not acceptable for high-precision instrument applications, such as view-period prediction and maneuver planning, both of which are computations that require a continuous prediction of the spacecraft state. Real-time positioning also requires simultaneous measurements from four GPS satellites, a missionlimiting factor that must be considered.
The GEONS software processes data from standard GPS receivers, onboard communication equipment, and/or attitude sensors, producing accurate absolute and relative navigation solutions in...