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MOLA Spherical Harmonic Aggregated Data Record (SHADR)

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SHADR – Spherical Harmonic Aggregated Data Record


Instrument: Mars Orbiter Laser Altimeter


For more information about MOLA SHADR products, see the Data Set Catalog File.


The Mars Orbiter Laser Altimeter (MOLA) Spherical Harmonic Aggregated Data Record (SHADR) contains coefficients and related data for a spherical harmonic model of the shape of Mars.  When evaluated, the model gives absolute radius from Mars center of mass in meters.


The model is a numerical transform of planetary radius values from the MOLA 0.5-degree gridded data set into spherical harmonics using Simpson’s Rule quadrature.


The MOLA SHADR is named GTM090AA.SHA, with its corresponding label file.


In ODE, the SHADR product has the following product ID: