PDS Geosciences Node Data and Services: MRO SHARAD 3D Radar

MRO: SHARAD 3D Radargrams

October 22, 2025. New data have been added to the SHARAD 3D Radargram bundle. See release_notes.txt for more information.

August 12, 2025. The MRO SHARAD 3D Radargram dataset has been migrated to the PDS4 standard. See readme.txt for more information.

This bundle contains three-dimensional volumes of radar sounding data for Mars collected by the SHARAD instrument on the Mars Reconnaissance Orbiter. Each 3D radar volume consists of an amalgamation of data collected over many SHARAD tracks crossing a given projected area. Each 3D volume contains values of the radar backscatter power, strength, or amplitude arranged in an array with either time delay or depth on the fastest varying (Z) axis, the projection X coordinate on the slowest varying axis, and the projection Y coordinate on the intermediately varying axis. The label file for each 3D volume contains information about the axes sampling intervals, projections, and data scaling.

Non-PDS versions of all SHARAD 3D radargrams are currently available at https://sharad.psi.edu.

Bundle Citation: Putzig, N., F. Foss, M. Perry, G. Morgan, and P. Sava (2025). Mars Reconnaissance Orbiter SHARAD 3D Radargram Bundle. PDS Geosciences (GEO) Node. https://doi.org/10.17189/a5av-yc11.

Direct Access to Archive Contents Online

Root Directory - Start here for access to the entire bundle.

readme.txt - Introduction to the archive.

Data Collection - Contains 3D data products as binary 32-bit floating-point 3D arrays.

Browse Collection - Contains the 8-bit browse jpeg images.

Document Collection - Contains relevant documents for understanding the dataset.

Catalog Collection - Contains PDS3 catalog files describing the dataset, instrument, spacecraft, and mission.

Index Collection - Contains indexes of the data products and their source products.

Extras Directory - Contains ancillary material that may be useful but is not required for the understanding of the archive. Note that these files have not been given PDS4 labels since most of them are not PDS4-compliant.