1. School of Physical Sciences, Open University, Milton Keynes, UK
2. Department of Earth Sciences, Natural History Museum, London, UK
3. European Space Research and Technology Centre (ESA/ESTEC), Directorate of Human and Robotic Exploration, Noordwijk, Netherlands
4. European Space Research and Technology Centre (ESA/ESTEC), Directorate of Science, Noordwijk, Netherlands
5. German Aerospace Center (DLR), Institute of Planetary Research Rutherfordstr, Berlin, Germany
6. Istituto Nazionale di Astrofisica Osservatorio Astronomico di Padova Vicolo dell'Osservatorio, Padova, Italy
7. Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome, Italy
8. Laboratoire de Planétologie et Géodynamique, LPG Nantes, Nantes, France
9. Université Paris Saclay – CNRS – Institute d'Astrophysique Spatiale, Orsay, France
10. Space Research Centre, University of Leicester, Leicester, UK
11. Univ Lyon, Univ Lyon 1, ENSL, CNRS, LGL-TPE, Villeurbanne, France
12. Physikalisches Institut, University of Bern, Bern, Switzerland