1. Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USA.
2. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, USA.
3. LESIA, Observatoire de Paris, Université PSL, Sorbonne Université, Université Paris Cité, CNRS, Meudon 92195, France.
4. Departments of Astronomy and of Earth and Planetary Science, University of California, Berkeley, CA 94720, USA.
5. Center for Integrative Planetary Science, University of California, Berkeley, CA 94720-3411, USA.
6. Faculty of Aerospace Engineering, Delft University of Technology, Delft, Netherlands.
7. Leiden Observatory, Leiden University, P.O. Box 9513, NL 2300 RA, Leiden, Netherlands.
8. School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK.
9. Istituto Nazionale di AstroFisica–Istituto di Astrofisica e Planetologia Spaziali (INAF-IAPS), Rome, Italy.
10. Université Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Institut de Planétologie et d’Astrophysique de Grenoble (IPAG), Grenoble 38000, France.
11. SETI Institute, Mountain View, CA 94043, USA.