1. NASA, Goddard Space Flight Center Greenbelt Maryland USA
2. Department of Astronomy University of Maryland College Park Maryland USA
3. Laboratory of Atmospheric and Space Sciences University of Colorado Boulder Boulder Colorado USA
4. Southwest Research Institute San Antonio Texas USA
5. Department of Physics University of New Hampshire Durham New Hampshire USA
6. Department of Physics and Astronomy Rice University Houston Texas USA
7. Denali Scientific Healy Alaska USA
8. Institut de Recherche en Astrophysique et Planétologie Université de Toulouse Toulouse France
9. Centre National de la Recherche Scientifique, UMR 5277 Toulouse France
10. Earth, Planetary, and Space Sciences University of California Los Angeles California USA
11. Swedish Institute of Space Physics Uppsala Sweden
12. KTH Royal Institute of Technology Stockholm Sweden