1. Imperial College London London UK
2. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA
3. NASA, Goddard Space Flight Center Greenbelt MD USA
4. The Aerospace Corporation Los Angeles CA USA
5. Geophysical Institute University of Alaska Fairbanks Fairbanks AK USA
6. Swedish Institute of Space Physics (Uppsala) Uppsala Sweden
7. Earth Planetary and Space Sciences University of California Los Angeles CA USA
8. Southwest Research Institute San Antonio TX USA
9. Department of Physics & Astronomy University of Texas at San Antonio San Antonio TX USA
10. Institut de Recherche en Astrophysique et Planétologie, CNRS, UPS, CNES Université de Toulouse Toulouse France
11. Space Sciences Laboratory University of California Berkeley CA USA
12. Department of Physics University of New Hampshire Durham NH USA