Navigation capability for an ion drive rendezvous with Halley's Comet

Details Navigation capability for an ion drive rendezvous with Halley's Comet Navigation capability for an ion drive rendezvous with Halley's Comet

Sep 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jansc..26..197t&link_type=abstract

Journal of the Astronautical Sciences, vol. 26, July-Sept. 1978, p. 197-210.

Astronomy and Astrophysics

Astronomy

Halley'S Comet, Ion Propulsion, Space Exploration, Space Navigation, Space Rendezvous, Error Analysis, Low Thrust, Onboard Equipment, Optical Data Processing, Orbit Calculation, Radio Tracking, Space Missions, Time Lag, Visual Observation

Scientific paper

Navigation accuracies are presented for a 1985 rendezvous with Halley's Comet using an ion propulsion system. Individual error sources are examined to determine their relative contributions to final delivery errors. The sensitivity of delivery accuracy to stochastic thrust variations is demonstrated by considering a baseline thrust error model and a more benign alternative model. Also studied are the effects of increased comet ephemeris uncertainties and of operational time delays between the orbit determination process and the guidance implementation.

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