Physics
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990rpsct...1...36m&link_type=abstract
In its JPRS Report: Science and Technology. USSR: Space p 36 (SEE N91-20154 12-12) Transl. into ENGLISH from Kinematika i Fizika
Physics
Gravitational Effects, Gravitational Fields, Planetary Gravitation, Planetary Rotation, Venus Surface, Centrifugal Force, Magnetic Anomalies, Pioneer Venus Spacecraft, Tides
Scientific paper
In order to determine the distribution of gravitational potential and deflections of the vertical on a planet, one must choose a reference surface and a model of the potential of the planet, including external forces. The potentials of five forces are considered: gravitational potential of the planet itself; gravitational potential of the atmosphere; centrifugal potential of axial rotation; centrifugal-rotational potential of orbital revolution; and tidal potential from the Sun. It is shown that the latter three can be ignored in the calculation of the normal field. A dense atmosphere can have a significant effect on normal gravity gradients, and this is considered in the calculations. A potential model based on Pioneer Venus Doppler measurements is used to calculate gravitational anomalies.
Chuykova N. A.
Maksimova T. G.
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