1. School of Physical Sciences The Open University Milton Keynes UK
2. Space Science and Technology Department Science and Technology Facilities Council Rutherford Appleton Laboratory Didcot UK
3. Department of Physics University of Oxford Oxford UK
4. Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Kanagawa Japan
5. Royal Belgian Institute for Space Aeronomy Brussels Belgium
6. NASA Goddard Space Flight Center Greenbelt MD USA
7. Department of Physics American University Washington DC USA
8. Department of Physics California State University San Bernardino San Bernardino CA USA
9. Space Research Institute of the Russian Academy of Sciences (IKI RAS) Moscow Russia
10. Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA