1. Space Plasma Physics Group University of Bergen Bergen Norway
2. Southwest Research Institute San Antonio TX USA
3. Swedish Institute of Space Physics Uppsala Sweden
4. Space and Plasma Physics, School of Electrical Engineering KTH Royal Institute of Technology Stockholm Sweden
5. Space and Plasma Physics, Department of Physics and Astronomy Uppsala University Uppsala Sweden
6. School of Space and Environment Beihang University Beijing China
7. NASA Goddard Space Flight Center Greenbelt MD USA
8. Department of Astronomy University of Maryland College Park MD USA
9. Space Research Institute Austrian Academy of Sciences Graz Austria