The strategy and technique in determining the orbits of the Pioneer Venus multiprobe bus and probes

Details The strategy and technique in determining the orbits of the Pioneer Venus multiprobe bus and probes The strategy and technique in determining the orbits of the Pioneer Venus multiprobe bus and probes

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aiaa.conft....w&link_type=abstract

American Astronautical Society and American Institute of Aeronautics and Astronautics, Astrodynamics Specialist Conference, Prov

Astronomy and Astrophysics

Astronomy

Mission Planning, Orbit Calculation, Pioneer Venus Spacecraft, Spacecraft Reentry, Venus Probes, Doppler Navigation, Ferry Spacecraft, Graphs (Charts), Satellite Guidance, Satellite Navigation Systems, Satellite Orbits, Satellite Tracking, Spacecraft Maneuvers, Tables (Data), Trajectory Control, Venus Atmosphere

Scientific paper

The Venus Multiprobe Mission presented the greatest degree of complexity for an Orbit Determination task inasmuch as the spacecraft was composed of a bus, a large probe, and three small probes, all of which impacted the planet at various times and locations. In addition, there were eight major maneuvers for the purpose of spacecraft-probe separation and trajectory retargeting. The multiprobe antenna polarization, antenna offset from the spin axis, and spacecraft rotation introduce signatures into the radiometric Doppler data. These signatures, especially in regard to effects seen in Doppler residuals, further increase the complexity of the orbit determination problem. This paper describes the strategy and technique in using this Doppler data to determine the orbits of the multiprobe bus, the large probe, and the three small probes.

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