1. NASA Goddard Space Flight Center Heliophysics Science Division Greenbelt MD USA
2. Department of Earth and Space Sciences University of California Los Angeles CA USA
3. Department of Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USA
4. Johns Hopkins University Applied Physics Laboratory Johns Hopkins University Laurel MD USA
5. Space Research Institute Austrian Academy of Sciences Graz Austria
6. University of New Hampshire Durham NH USA
7. Laboratory for Atmospheric and Space Physics University of Colorado Boulder CO USA