1. Laboratory for Atmospheric and Space Physics Boulder CO USA
2. University of Texas Arlington TX USA
3. Astrophysical and Planetary Sciences Department University of Colorado Boulder CO USA
4. Space Research Institute Austrian Academy of Sciences San Antonio TX USA
5. University of California, Berkeley Berkeley CA USA
6. Southwest Research Institute Boulder CO USA
7. Goddard Spaceflight Center Greenbelt MD USA
8. University of California, Los Angeles Los Angeles CA USA
9. Space Science Center University of New Hampshire Durham NH USA
10. Swedish Institute of Space Physics Uppsala Sweden
11. KTH Royal Institute of Technology Stockholm Sweden