Mathematics – Logic
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....9514155s&link_type=abstract
(American Geophysical Union and Geological Society of America, International Conference on Mars, 4th, Tucson, AZ, Jan. 10-13, 19
Mathematics
Logic
9
Error Analysis, Gravitational Fields, Mars Observer, Planetary Gravitation, Radio Tracking, Computerized Simulation, Mathematical Models, Power Spectra, Radiation Pressure, Spherical Harmonics, Topography
Scientific paper
Results are presented on the analysis of the recovery of the Martian gravity field from tracking data in the presence of unmodeled error effects associated with different orbit orientations. The analysis was based on the mission plan for the Mars Observer (MO) radio tracking data from the Deep Space Network. From the analysis, a conservative estimate of the gravitational accuracy for the entire mission could be obtained. The results suggest that, because the atmospheric drag is the dominant error source, the spacecraft orbit could possibly be raised in altitude without a significant loss of gravitational signal. A change in altitude will also alleviate the large effects seen in the spectrum the satellite resonant orders.
Chan Joseph C.
Chinn Douglas S.
Iz Huseyin B.
Lerch F. J.
Smith Douglas E.
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