1. Space and Atmospheric Physics Imperial College London London UK
2. Department of Physics and Astronomy University of Iowa Iowa City Iowa USA
3. Department of Physics and Astronomy University of Leicester Leicester UK
4. Department of Earth, Planetary, and Space Sciences University of California Los Angeles California USA
5. Climate and Space Sciences and Engineering University of Michigan Ann Arbor Michigan USA
6. Johns Hopkins University Applied Physics Laboratory Laurel Maryland USA
7. Department of Physics and Astronomy University College London London UK
8. Centre for Planetary Sciences at UCL/Birkbeck London UK
9. Mullard Space Science Laboratory University College London Surrey UK