Two strategies to determine location of geocenter from observations of satellites in Global Positioning System (GPS) devised. First strategy: filtering algorithm used to process GPS data adjusts baselines between reference site and all nonfiducial sites along with GPS orbits and absolute coordinates of reference site. Second strategy: only longitude of reference site held fixed; all other coordinates of this site adjusted simultaneously along with states of GPS satellites. Center of mass of Earth located within few centimeters.
Locating The Geocenter From GPS Measurements
NASA Tech Briefs ; 17 , 4
1992-04-01
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Englisch
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