Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusm.g22a..10l&link_type=abstract
American Geophysical Union, Spring Meeting 2002, abstract #G22A-10
Physics
1200 Geodesy And Gravity, 1214 Geopotential Theory And Determination, 1227 Planetary Geodesy And Gravity (5420, 5714, 6019), 1241 Satellite Orbits
Scientific paper
The CHAMP mission, launched in July 2000, is the first in a series of missions that will revolutionize our ability to model the Earth's geopotential. The CHAMP spacecraft is equiped for precision tracking by the Global Positioning System (GPS) and Satellite laser ranging (SLR) and along with precision accelerometer to provide measurements of the surface forces. In preparation for CHAMP and GRACE, extensive modifications have been made to NASA GSFC's GEODYN orbit determination software to enable the simultaneous reduction of spacecraft tracking, three-axis accelerometry, and precise attitude data. We report in this paper on the analysis of over 80 days CHAMP tracking and accelerometry and how these data contribute to satellite-only and combination geopotential solutions for the Earth. We evaluate the quality of the precise orbits and summarize the strategies we have applied in our GPS orbit analyses.
Chinn Douglas S.
Cox Christopher M.
Lemoine Frank G.
Luthcke Scott B.
Nerem Steven R.
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