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Mars Global Surveyor: MOLA SHADR

Spherical Harmonics Topography Model

The MOLA Spherical Harmonics Topography Model  (SHADR) is a numerical transform of planetary radius values from the MOLA gridded data set (EGDR) into spherical harmonics using Simpson's Rule quadrature. When evaluated, the model gives absolute radius from Mars' center of mass in meters.

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gtm090aa.sha gtm090aa.lbl

Online Tools

Mars Orbital Data Explorer - Provides search, display, and download  tools for this data set.

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Curator: Jennifer Ward
NASA Official: Paul Byrne
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