Daniele Antonangeli¹, James Badro², Silvia Boccato¹, Guillaume Morard¹, Attilio Rivoldini³, Christopher T Russell⁴, Julien Siebert⁵ and Fang Xu¹, (1)Sorbonne Université - MNHN - CNRS - IMPMC, Paris, France, (2)Institut de Physique du Globe de Paris, Paris, France, (3)Royal Observatory of Belgium, Brussels, Belgium, (4)University of California Los Angeles, Department of Earth Planetary and Space Sciences, Los Angeles, CA, United States, (5)Université de Paris & Institut de Physique du Globe de Paris, Paris, France