Sizes, shapes, and derived properties of the saturnian satellites after the Cassini nominal mission

Abstract

The Cassini spacecraft has provided data on over twenty satellites orbiting Saturn. In this study we update the shape measurements derived from imaging data of nearly all the observed regular satellites (those with low eccentricities and inclinations) and briefly discuss some of the implications of their properties. In particular, the improved data show that Rhea's shape is hydrostatic.