Improvements in navigation resulting from the use of dual spacecraft radiometric data

Details Improvements in navigation resulting from the use of dual spacecraft radiometric data Improvements in navigation resulting from the use of dual spacecraft radiometric data

Apr 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977dsn..nasa...55c&link_type=abstract

In its The Deep Space Network p 55-65 (SEE N77-21110 12-12)

Other

Deep Space Network, Radiometers, Space Navigation, Computerized Simulation, Mariner Jupiter-Saturn Flyby, Spacecraft Guidance, Spacecraft Tracking, Viking Orbiter Spacecraft

Scientific paper

When two interplanetary spacecraft lie along similar geocentric lines-of-sight, navigational advantages may be achieved by navigating one spacecraft with respect to the other. Opportunities to employ this technique will become more common as more multiprobe missions are launched. The two Viking spacecraft and the two Mariner Jupiter/Saturn '77 spacecraft will be within two and three degrees of each other, respectively, for a large portion of their missions. Results of simulated analysis as well as the processing of real tracking data from the two Viking spacecraft reveal the following advantages of the dual spacecraft navigation technique: (1) cancellation of platform parameter and transmission media modeling errors in short arc solutions, (2) accurate encounter guidance for the trailing spacecraft, (3) reduction of total tracking requirements, and (4) rapid determination of the orbit following a maneuver on either spacecraft.

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