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. Johns Hopkins University Applied Physics Laboratory Laurel MD USA
5. Space Research Corporation Annapolis MD USA
6. NASA Goddard Space Flight Center Greenbelt MD USA
7. Department of Physics and Astronomy University of Iowa Iowa City IA USA
8. Jet Propulsion Laboratory Pasadena CA USA
9. Department of Astrophysical Sciences Princeton University Princeton NJ USA
10. Department of Astronomy University of Maryland College Park MD USA