1. Equipe Planétologie et Sciences SpatialesUniversité Paris Diderot, Sorbonne Paris Cité, Institut de Physique du Globe de Paris, UMR 7154 CNRS Paris France
2. Department of Earth, Ocean and Atmospheric SciencesUniversity of British Columbia Vancouver British Columbia Canada
3. Planetary Science Institute Tucson Arizona USA
4. Department of GeophysicsStanford University Stanford California USA
5. Boulder Bits LLC Boulder Colorado USA