Tom Andert¹, Matthias Hahn², Jean-Pierre Barriot³, Martin Paetzold², Robert Jacob¹, Silvia Tellmann², Bernd Häusler¹, Jean-charles Marty⁴, Julien Laurent-Varin⁴, Holger Sierks⁵, Carsten Güttler⁵ and Cecilia Tubiana⁵, (1)Bundeswehr University Munich, Institute of Space Technology and Space Applications, Munich, Germany, (2)University of Cologne; Rheinisches Institut fuer Umweltforschung (RIU), Department of Planetary Research, Cologne, Germany, (3)University of French Polynesia, Faa'a, French Polynesia, (4)GET-CNES, OMP, Toulouse, France, (5)Max-Planck Institute for Solar System Research, Goettingen, Germany