1. Mullard Space Science LaboratoryUniversity College London Dorking UK
2. Centre for Planetary Sciences at UCL/Birkbeck London UK
3. Department of PhysicsLancaster University Lancaster UK
4. Space and Atmospheric Physics Group, The Blackett LaboratoryImperial College London London UK
5. Department of Physics and AstronomyUniversity of Southampton Southampton UK
6. Department of Physics and AstronomyUniversity of Iowa Iowa City Iowa USA
7. Department of Physics and AstronomyUniversity of Leicester Leicester UK
8. The Johns Hopkins University Applied Physics Laboratory Laurel Maryland USA
9. Department of Physics and AstronomyUniversity of Montana Missoula Montana USA
10. Office for Space ResearchAcademy of Athens Athens Greece