1. Department of Physics The Catholic University of America Washington DC USA
2. Johns Hopkins University Applied Physics Laboratory Laurel MD USA
3. University of Colorado Laboratory for Atmospheric and Space Physics
4. Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA
5. UK Met Office Exeter UK
6. NASA Goddard Space Flight Center Greenbelt MD USA
7. Department of Physics and Astronomy Clemson University Clemson SC USA
8. Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USA
9. Earth, Planetary, and Space Sciences University of California Los Angeles CA USA
10. ASTRA Greenbelt MD USA