Gravity Field, Shape, and Moment of Inertia of Titan

Abstract

Titan Through to the Core Gravity measurements acquired from orbiting spacecraft can provide useful information about the interior of planets and their moons. Iess et al. (p. 1367 ; see the Perspective by Sohl ) used gravity data from four flybys of the Cassini spacecraft past Saturn's moon, Titan, to model the moon's gravity field and probe its deep interior structure. Their analysis implies that Titan is a partially differentiated body with a core consisting of a mix of ice and rock or hydrated silicates.