Viking radio science data analysis and synthesis

Details Viking radio science data analysis and synthesis Viking radio science data analysis and synthesis

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pggp.rept..149s&link_type=abstract

In NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984 p 149-151 (SEE N85-23474 13-91)

Other

Mars (Planet), Mars Surface, Planetary Gravitation, Planetary Rotation, Planetary Structure, Asteroids, Planetary Mass, Radio Tracking, Solar System, Topography, Viking Spacecraft

Scientific paper

The objectives of the analysis of the Viking radio tracking data are: (1) the study of Mars, its rotation, topography, and internal structure; (2) the development of a general dynamical model of the solar system; and (3) tests of the fundamental laws of gravitation. The central element in the data analysis is the Planetary Ephemeris Program (PEP) which embodies the mathematical models of the solar system. The asteroid model in PEP is changed to better estimate the mass of a fictitious uniform ring and the masses of eight separate asteroids. A model of the rotation of Mars include a secular rate of change of the period and both annual and semiannual variations in the phase of rotation. Other modifications to this model are discussed.

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