1. Space Sciences Laboratory; University of California; Berkeley California USA
2. Department of Physics and Astronomy; Dartmouth College; Hanover New Hampshire USA
3. Southwest Research Institute; San Antonio Texas USA
4. Laboratory for Atmospheric and Space Physics; Boulder Colorado USA
5. Department of Physics; Augsburg College; Minneapolis Minnesota USA
6. Los Alamos National Laboratory; Los Alamos New Mexico USA
7. NOAA Space Weather Prediction Center; Boulder Colorado USA
8. British Antarctic Survey; Cambridge UK