Venus spherical harmonic gravity model to degree and order 60

Details Venus spherical harmonic gravity model to degree and order 60 Venus spherical harmonic gravity model to degree and order 60

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994icar..112...42k&link_type=abstract

Icarus (ISSN 0019-1035), vol. 112, no. 1, p. 42-54

Physics

42

Gravimetry, Gravitational Fields, Mathematical Models, Planetary Gravitation, Spherical Harmonics, Venus (Planet), Acceleration (Physics), Data Correlation, Geoids, Magellan Project (Nasa), Pioneer Venus 1 Spacecraft, Radiometric Resolution, Superhigh Frequencies, Topography

Scientific paper

The Magellan and Pioneer Venus Orbiter radiometric tracking data sets have been combined to produce a 60th degree and order spherical harmonic gravity field. The Magellan data include the high-precision X-band gravity tracking from September 1992 to May 1993 and post-aerobraking data up to January 5, 1994. Gravity models are presented from the application of Kaula's power rule for Venus and an alternative a priori method using surface accelerations. Results are given as vertical gravity acceleration at the reference surface, geoid, vertical Bouguer, and vertical isostatic maps with errors for the vertical gravity and geoid maps included. Correlation of the gravity with topography for the different models is also discussed.

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