Autonomous position and velocity determination in interplanetary space

Details Autonomous position and velocity determination in interplanetary space Autonomous position and velocity determination in interplanetary space

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992gnc..conf.1287v&link_type=abstract

IN: AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, Aug. 10-12, 1992, Technical Papers. Pt. 3 (A92-551

Astronomy and Astrophysics

Astronomy

Autonomy, Interplanetary Space, Interplanetary Spacecraft, Space Navigation, Spacecraft Control, Velocity Measurement, Earth-Mars Trajectories, Position Sensing, Spacecraft Instruments, State Estimation, State Vectors

Scientific paper

A new method for estimating the state vector ab initio is described which is based solely on a small number of sequential, time-tagged sightings of known objects with onboard optical equipment. The objects include planets or their satellites and the brighter asteroids. The only requirement is that the objects be observable with onboard instrumentation, such as a star tracker; their ephemerides must be known onboard, and they must not be pairwise coplanar with the spacecraft's trajectory during the observation interval. An algorithm implementing the method is described, and simulation results are presented.

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