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. Department of Physics and Astronomy Rice University Houston TX USA
4. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA
5. Lockheed Martin Advanced Technology Center Palo Alto CA USA
6. Space Science and Engineering Southwest Research Institute Durham NH USA
7. Los Alamos National Laboratory Los Alamos NM USA
8. Earth and Space Sciences University of California, Los Angeles Los Angeles CA USA