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PDS Geosciences Node, Washington University in St. Louis
Geosciences Node Data
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Magellan Spherical Harmonics, Topography, and Gravity Data

September 28, 2023. The Magellan Spherical Harmonic, Gravity, and Topography dataset has been migrated to the PDS4 standard. The original PDS3 data products, labels, and documentation remain available in their original archive volume. The only change is that PDS4 labels and documentation have been added to the archives. The original data files are unchanged. Please see geo_notes_and_errata.pdf for more information.

This archive contains Magellan spherical harmonic models of Venus' gravity and topography field, and digital maps of the Bouguer anomalies, free-air gravity accelerations and errors, geoid anomalies and errors, and topography. It also contains documentation describing the products.

Click on the links to view files and directories in the data set.

Online Data (PDS4)

Use the links for direct access to any part of the bundle.

root directory PDS4 bundle root directory
readme document Introduction to the archive
catalog directory Contains PDS3 catalog files, and information about the datasets
document directory Contains document files relating to this archive
gravity directory Contains spherical harmonic models of the gravity field and gravity map files
topo directory Contains spherical harmonic models of the topography field and a topography map file
index directory Contains index files relating to this archive
images directory Contains byte-scaled images of the ASCII data files in the gravity and topo directories

Data Set Producers

The spherical harmonic gravity model and digital gravity map products were generated by William L. Sjogren, JPL and Alex S. Konopliv, JPL. The spherical harmonic topography model and digital topography map products were generated by Nicole J. Rappaport, JPL.  Please direct any questions and comments to the PDS Geosciences Node,

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Curator: Jennifer Ward
NASA Official: Paul Byrne
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