Enceladus's ice shell thickness and ocean depth from gravity, topography, and libration measurements

Antony Trinh1, Attilio Rivoldini1, Mikael Beuthe1, Jeremy Rekier2, Rose-Marie Baland1 and Tim Van Hoolst1, (1)Royal Observatory of Belgium, Brussels, Belgium, (2)Observatoire Royal de Belgique, Brussels, Belgium