1. Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, USA.
2. Goddard Space Flight Center, Greenbelt, MD, USA.
3. Los Alamos National Laboratory, Los Alamos, NM, USA.
4. Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, NH, USA.
5. Space Science and Engineering Division, Southwest Research Institute, San Antonio, TX, USA.
6. Department of Physics and Astronomy, Dartmouth College, Hanover, NH, USA.
7. Department of Atmospheric and Oceanic Sciences, University of California–Los Angeles, Los Angeles, CA, USA.
8. Department of Physics and Astronomy, University of Iowa, Iowa City, IA, USA.
9. The Aerospace Corporation, Los Angeles, CA, USA.