1. Space Science and Engineering Department Southwest Research Institute San Antonio TX USA
2. Department of Physics and Astronomy University of Texas at San Antonio San Antonio TX USA
3. Department of Physics and Astronomy University of Iowa Iowa City IA USA
4. Lockheed Martin Advanced Technology Center Palo Alto CA USA
5. Laboratory for Atmospheric and Space Physics University of Colorado Boulder CO USA
6. Space Sciences Laboratory University of California, Berkeley Berkeley CA USA
7. NASA Goddarsd Space Flight Center Greenbelt MD USA
8. Earth and Space Sciences University of California, Los Angeles Los Angeles CA USA