Analysis of harmonic spline gravity models for Venus and Mars

Details Analysis of harmonic spline gravity models for Venus and Mars Analysis of harmonic spline gravity models for Venus and Mars

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986whoi.rept.....b&link_type=abstract

Final Report, 15 May 1985 - 31 Dec. 1986 Woods Hole Oceanographic Inst., MA.

Physics

Gravity Anomalies, Mars (Planet), Spline Functions, Venus (Planet), Acceleration (Physics), Gravitational Fields, Line Of Sight, Spacecraft Tracking

Scientific paper

Methodology utilizing harmonic splines for determining the true gravity field from Line-Of-Sight (LOS) acceleration data from planetary spacecraft missions was tested. As is well known, the LOS data incorporate errors in the zero reference level that appear to be inherent in the processing procedure used to obtain the LOS vectors. The proposed method offers a solution to this problem. The harmonic spline program was converted from the VAX 11/780 to the Ridge 32C computer. The problem with the matrix inversion routine that improved inversion of the data matrices used in the Optimum Estimate program for global Earth studies was solved. The problem of obtaining a successful matrix inversion for a single rev supplemented by data for the two adjacent revs still remains.

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