1. Southwest Research Institute; San Antonio TX USA
2. Department of Physics and Astronomy; Rice University; Houston TX USA
3. Space Research Institute; Austrian Academy of Sciences; Graz Austria
4. Department of Physics; University of New Hampshire; Durham NH USA
5. NASA, Goddard Space Flight Center; Greenbelt MD USA
6. Department of Physics; Catholic University of America; Washington DC USA
7. Space Sciences Laboratory; University of California; Berkeley CA USA
8. Applied Physics Laboratory; The Johns Hopkins University; Laurel MD USA
9. Department of Astronomy; University of Maryland; College Park MD USA
10. Laboratoire de Physique des Plasmas; CNRS, Ecole Polytechnique, UPMC University Paris 06, Université Paris-Sud, Observatoire de Paris; Paris France
11. Earth and Planetary Sciences; University of California; Los Angeles CA USA
12. LASP; University of Colorado Boulder; Boulder CO USA
13. Department of Physics and Astronomy; University of Iowa; Iowa City IA USA
14. Royal Institute of Technology; Stockholm Sweden
15. Swedish Institute of Space Physics; Uppsala Sweden