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. Lockheed Martin Advanced Technology Center; Palo Alto CA USA
4. Laboratory for Atmospheric and Space Physics; University of Colorado Boulder; Boulder CO USA
5. Goddard Space Flight Center; Greenbelt MD USA
6. University of California; Los Angeles CA USA
7. Institut de Recherche en Astrophysique et Planétologie; Université de Toulouse, CNRS, UPS, CNES; Toulouse France
8. Space Sciences Laboratory; University of California; Berkeley CA USA
9. University of New Hampshire; Durham NH USA
10. Applied Physics Laboratory; Laurel MD USA
11. West Virginia University; Morgantown WV USA