1. Laboratory for Atmospheric and Space Physics; University of Colorado at Boulder; Boulder Colorado USA
2. National Oceanic and Atmospheric Administration; Boulder Colorado USA
3. Johns Hopkins University Applied Physics Laboratory; Laurel Maryland USA
4. Air Force Research Laboratory; Kirtland Air Force Base New Mexico USA
5. Solar System Exploration Division; NASA Goddard Space Flight Center; Greenbelt Maryland USA
6. Department of Atmospheric, Oceanic and Space Sciences; University of Michigan; Ann Arbor Michigan USA
7. Institute for Geophysics and Planetary Physics; University of California; Los Angeles California USA
8. Heliophysics Science Division; NASA Goddard Space Flight Center; Greenbelt Maryland USA
9. Department of Terrestrial Magnetism; Carnegie Institution of Washington; Washington D. C. USA
10. Department of Astronomy; University of Maryland; College Park Maryland USA