1. Southwest Research Institute; San Antonio TX USA
2. Department of Physics and Astronomy; University of Texas at San Antonio; San Antonio TX USA
3. Laboratory for Atmospheric and Space Physics; University of Colorado Boulder; Boulder CO USA
4. Goddard Space Flight Center; Greenbelt MD USA
5. The Johns Hopkins University Applied Physics Lab; Laurel MD USA
6. Department of Physics and Astronomy; University of Iowa; Iowa City IA USA
7. Jet Propulsion Laboratory; Pasadena CA USA
8. Institut de Recherche en Astrophysique et Planétologie; Toulouse France
9. Department of Astrophysical Sciences; Princeton University; Princeton NJ USA
10. Office of the Vice President for the Princeton Plasma Physics Laboratory; Princeton University; Princeton NJ USA
11. Institute of Geophysics and Meteorology; University of Cologne; Cologne Germany
12. Planetary Science Institute; Tucson AZ USA