1. Mullard Space Science LaboratoryUniversity College London London UK
2. Centre for Planetary SciencesUniversity College London/Birkbeck London UK
3. Department of Climate and Space Sciences and EngineeringUniversity of Michigan Ann Arbor Michigan USA
4. Department of PhysicsLancaster University Lancaster UK
5. Office for Space Research and TechnologyAcademy of Athens Athens Greece
6. Institute of Astronomy, Astrophysics, Space Applications and Remote SensingNational Observatory of Athens Athens Greece
7. Planetary Science Institute Tucson Arizona USA
8. Max‐Planck‐Institut für Sonnensystemforschung Göttingen Germany