Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufm.g33b..05j&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #G33B-05
Physics
[1200] Geodesy And Gravity, [1240] Geodesy And Gravity / Satellite Geodesy: Results
Scientific paper
ESA's first Earth Explorer Core Mission GOCE is equipped with a 12-channel, dual-frequency GPS receiver for precise orbit determination, instrument time-tagging, and the determination of the long wavelength part of the Earth's gravity field. A rapid science orbit (RSO) product with sub-dm accuracy is provided by the GOCE High-level Processing Facility (HPF) with a latency of 1-day for quick-look analyses. A precise science orbit (PSO) product with 2-cm accuracy is provided with a latency of 1-week for final analyses. We present the reduced-dynamic and kinematic RSO and PSO results obtained from the first year of science operations. Orbit comparisons and validations with independent Satellite Laser Ranging (SLR) measurements demonstrate that the mission requirements are fully met for both orbit products. We use the 1-sec kinematic positions of the GOCE PSO product for gravity field determination. We analyze the contribution of the GOCE kinematic orbit positions to gravity field recovery and present solutions that resolve the Earth's gravity field up to degree 120.
Beutler Gerhard
Bock H.
Heinze Martin
Jaeggi Adrian
Meyer Ulrike
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