1. Department of Physics and Astronomy; University of Kansas; Lawrence Kansas USA
2. Swedish Institute of Space Physics; Uppsala Sweden
3. Department of Atmospheric, Oceanic, and Space Sciences; University of Michigan; Ann Arbor Michigan USA
4. Space Sciences Laboratory; University of California; Berkeley California USA
5. NASA Goddard Space Flight Center; Greenbelt Maryland USA
6. Lunar and Planetary Laboratory; University of Arizona; Tucson Arizona USA
7. Applied Physics Laboratory; Johns Hopkins University; Laurel Maryland USA
8. National Central University; Chung-Li Taiwan
9. Space and Atmospheric Physics Group; Imperial College; London UK
10. Southwest Research Institute; San Antonio Texas USA
11. Mullard Space Science Laboratory; University College London; Holmbury St. Mary, Dorking, Surrey UK