The gravity field and interior structure of Dione inferred from Cassini radio-tracking data
Abstract
On December 12, 2011 a close flyby, with a closest approach altitude of 99 km allowed a good measurement of Dione's quadrupole with a relative accuracy up to 1.5% for J2 and 1.0% for C22. Here we report our results and a description of the analysis method. We present solutions for the quadrupole coefficients both when the body is assumed in a relaxed shape (hydrostatic constraint) and for a generic, unconstrained field.
- Publication:
-
European Planetary Science Congress 2012
- Pub Date:
- September 2012
- Bibcode:
- 2012epsc.conf..598D