1. Institute of Physics University of Graz Graz Austria
2. Space Research Institute Austrian Academy of Sciences Graz Austria
3. Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Sagamihara Japan
4. Southwest Research Institute Durham NH USA
5. Department of Physics and Astronomy Dartmouth College Hanover NH USA
6. Space Sciences Laboratory University of California Berkeley CA USA
7. Department of Physics Imperial College London London UK
8. Los Alamos National Laboratory Los Alamos NM USA