Valentina Galluzzi¹, Joana S. Oliveira^2,3, Jack Wright⁴, Lon L. Hood⁵ and David A Rothery⁴, (1)INAF, Istituto di Astrofisica e Planetologia Spaziali, Rome, Italy, (2)ESA, European Space Research and Technology Centre, Noordwijk Zh, Netherlands, (3)CITEUC, Geophysical and Astronomical Observatory, University of Coimbra, Coimbra, Portugal, (4)School of Physical Sciences, Open University, Milton Keynes, United Kingdom, (5)University of Arizona, Lunar and Planetary Laboratory, Tucson, AZ, United States