Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aiaa.meetu....w&link_type=abstract
American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting, 20th, Orlando, FL, Jan. 11-14, 1982, 12 p. NASA
Astronomy and Astrophysics
Astronomy
Halley'S Comet, Return To Earth Space Flight, Space Missions, Space Navigation, Systems Engineering, Unmanned Spacecraft, Flyby Missions, Orbit Calculation, Spacecraft Maneuvers, Statistical Analysis, Time Functions, Trajectory Optimization
Scientific paper
A ballistic sample return mission to Comet Halley was recently considered by the United States. This paper describes the navigation system and the navigation strategy which would have been employed in such a mission, assuming a launch in August of 1985, an arrival at the comet in March of 1986, and a return to earth in August of 1989. Estimates of spacecraft comet- and earth-relative orbit determination accuracies are presented as functions of time. Target-relative delivery accuracies for the spacecraft and associated trajectory correction maneuver requirements are presented also.
Bergam M. J.
Craig S. L.
Wood James L.
Yeomans Donald Keith
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