1. Johns Hopkins University Applied Physics Lab Laurel MD USA
2. Department of Space Science University of Alabama in Huntsville Huntsville AL USA
3. Heliospheric Physics Laboratory (Code 672) NASA/Goddard Space Flight Center Greenbelt MD USA
4. Space Science Center University of New Hampshire Durham NH USA
5. Department of Astrophysical Science Princeton University Princeton NH USA
6. Physics Department University of California Berkeley CA USA
7. Space Sciences Laboratory University of California Berkeley CA USA
8. The Blackett Laboratory Imperial College London London UK
9. School of Physics and Astronomy Queen Mary University of London London UK
10. Smithsonian Astrophysical Observatory Cambridge MA USA
11. Space Radiation Laboratory California Institute of Technology Pasadena CA USA
12. Space Science and Engineering Division Southwest Research Institute San Antonio TX USA
13. Department of Physics and Astronomy University of Iowa Iowa City IA USA
14. School of Physics and Astronomy University of Minnesota Minneapolis MN USA
15. Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USA
16. Laboratory for Atmospheric and Space Physics University of Colorado Boulder CO USA
17. Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA