Publication Date:
2019-07-13
Description:
The velocity of the GEOS-3 satellite measured by Doppler as a function of time from the ATS-6 satellite was used to recover gravity anomalies in the region of the East Pacific. The orbit GEOS-3 at an altitude of 840 km was perturbed by spatial changes in Earth's gravitational field. These perturbations were measured via ATS-6 which is in a synchronous orbit at an altitude of about 40,000 km. The range-rate data were reduced using a gravitational field model complete to the 12 degree and order. A simulation of the possible effects causing the remaining range-rate residuals relative to the 12, 12 field shows that in general the dominant effect is the neglect of the higher degree and order coefficients of the gravitational field model.
Keywords:
GEOPHYSICS
Type:
NASA-TM-79553
,
Intern. Symp. on the use of Artificial Satellites for Geodesy and Geodynamics; May 01, 1978; Lagonissi; Greece
Format:
application/pdf
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