1. Department of Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USA
2. Space Vehicles Directorate, Air Force Research Laboratory Kirtland AFB NM USA
3. Space Science and Applications, Los Alamos National Laboratory Los Alamos NM USA
4. Department of Physics The Catholic University of America Washington DC USA
5. NASA Goddard Space Flight Center, Space Weather Laboratory Greenbelt MD USA
6. Department of Physics and Mathematics, Uuniversity of Alcalá, Alcalá de Henares Madrid Spain
7. Space Environment Technologies Pacific Palisades CA USA
8. Swedish Institute of Space Physics Lund Sweden
9. Finnish Meteorological Institute Helsinki Finland
10. University of Texas at Arlington Arlington TX USA
11. UK Met Office Exeter UK
12. Department of Automatic Control and System Engineering University of Sheffield Sheffield UK
13. Swedish Institute of Space Physics Uppsala Sweden
14. Department of Physics and Astronomy George Mason University Fairfax VA USA
15. Space Weather Prediction Center National Oceanic and Atmospheric Administration Boulder CO USA
16. Institute of Atmospheric Physics CAS Prague Czech Republic
17. Department of Space Geodesy CNES Toulouse France
18. GFZ German Research Centre for Geosciences, Telegrafenberg Potsdam Germany
19. Institute of Physics and Astronomy University of Potsdam Potsdam Germany
20. Department of Earth and Space Sciences, UCLA Los Angeles CA USA