Precise interferometric tracking of the DSCS II geosynchronous orbiter

Details Precise interferometric tracking of the DSCS II geosynchronous orbiter Precise interferometric tracking of the DSCS II geosynchronous orbiter

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aiaa.meetqs...b&link_type=abstract

AIAA, Aerospace Sciences Meeting, 24th, Reno, NV, Jan. 6-9, 1986. 10 p. NASA-supported research.

Statistics

Defense Communications Satellite System, Radio Tracking, Satellite Tracking, Synchronous Satellites, Very Long Base Interferometry, Accuracy, Correction, Quasars, Tracking Networks, Tracking Stations

Scientific paper

A demonstration of the precise tracking of a geosynchronous orbiter by radio metric techniques based on very-long-baseline interferometry (VLBI) has been jointly conducted by the Jet Propulsion Laboratory and Japan's Radio Research Laboratory. Simultaneous observations of a U.S. Air Force communications satellite from tracking stations in California, Australia, and Japan have determined the satellite's position with an accuracy of a few meters. Accuracy claims are based on formal statistics, which include the effects of errors in non-estimated parameters and which are supported by a chi-squared of less than one, and on the consistency of orbit solutions from disjoint data sets. A study made to assess the impact of shorter baselines and reduced data noise concludes that with a properly designed system, similar accuracy could be obtained for either a satellite viewed from stations located within the continental U.S. or for a satellite viewed from stations within Japanese territory.

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