An Improved 360 Degree and Order Model of Venus Topography

Details An Improved 360 Degree and Order Model of Venus Topography An Improved 360 Degree and Order Model of Venus Topography

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999icar..139...19r&link_type=abstract

Icarus, Volume 139, Issue Icarus, pp. 19-31.

Computer Science

33

Scientific paper

We present an improved 360 degree and order spherical harmonic solution for Venus' topography. The new model uses the most recent set of Venus altimetry data with spacecraft positions derived from a recent high resolution gravity model. Geometric analysis indicates that the offset between the center of mass and center of figure of Venus is about 10 times smaller than that for the Earth, the Moon, or Mars. Statistical analyses confirm that the RMS topography follows a power law over the central part of the spectrum. Compared to the previous topography model, the new model is more highly correlated with Venus' harmonic gravity field.

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