1. Mullard Space Science Laboratory, Department of Space and Climate Physics University College London Dorking UK
2. Centre for Planetary Science UCL/Birkbeck London UK
3. ZP12, NASA Marshall Space Flight Center Huntsville Alabama USA
4. Center for Space Physics Boston University Boston Massachusetts USA
5. LESIA, Observatoire de Paris, CNRS, UPMC Université Paris Diderot Meudon France
6. Kavli Institute for Astrophysics and Space Research MIT Cambridge Massachusetts USA
7. Space Science and Engineering Division Southwest Research Institute San Antonio Texas USA
8. Department of Physics and Astronomy University of Southampton Southampton UK
9. Department of Physics and Astronomy University of Leicester Leicester UK
10. Space Research Institute Austrian Academy of Sciences Graz Austria
11. Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
12. Nishina Center for Accelerator‐Based Science RIKEN Wako Japan
13. Department of Atmospheric, Oceanic and Space Sciences University of Michigan Ann Arbor Michigan USA