1. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA
2. Department of Atmospheric and Oceanic Sciences University of California Los Angeles CA USA
3. Space Environment Technologies Pacific Palisades CA USA
4. Department of Physics Auburn University Auburn AL USA
5. Center for Space Physics Boston University Boston MA USA
6. Space Science Institute Boulder CO USA
7. Institute for the Study of Earth, Oceans and Space University of New Hampshire Durham NH USA
8. Space Science and Applications Group Los Alamos National Lab Los Alamos NM USA