1. Atmosphere and Space Technology Research Associates (ASTRA) Louisville CO USA
2. University of Reading Reading England
3. Birkeland Center University of Bergen Bergen Norway
4. CIRES University of Colorado Boulder CO USA
5. NOAA Space Weather Prediction Center Boulder CO USA
6. Department of Physics and Astronomy Dartmouth College Hanover NH USA
7. Applied Physics Laboratory the Johns Hopkins University Laurel MD USA
8. Department of Earth Sciences University of Hong Kong Kowloon Hong Kong
9. University of Calgary Calgary AB Canada