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Cassini Synthetic Aperture RADAR Derived Digital Topographic Models of Saturn's Moon Titan

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Abstract

These are ISIS cube files of topographic models for Titan, reported in P. Corlies et al. "Titan's Topography and Shape at the End of the Cassini Mission." In P. Corlies et al. we found: With the conclusion of the Cassini mission, we present an updated topographic map of Titan, including all the available altimetry, SARtopo, and stereophotogrammetry topographic data sets available from the mission. We use radial basis functions to interpolate the sparse data set, which covers only ∼9% of Titan's global area. The most notable updates to the topography include higher coverage of the poles of Titan, improved fits to the global shape, and a finer resolution of the global interpolation. We also present a statistical analysis of the error in the derived products and perform a global minimization on a profile-by-profile basis to account for observed biases in the input data set. We find a greater flattening of Titan than measured, additional topographic rises in Titan's southern hemisphere and better constrain the possible locations of past and present liquids on Titan's surface.

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This data was collected and processed by the NASA Cassini spacecraft mission.

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2024

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Titan; SAR; Topo; Topography; Cassini

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Government Document

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CC0 1.0 Universal

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