1. Space Science Division; Naval Research Laboratory; Washington District of Columbia USA
2. Atmospheric and Space Technology Research Associates; San Antonio Texas USA
3. Centre for Research in Earth and Space Science; York University; Toronto Ontario Canada
4. Space Physics Research Laboratory, Department of Atmospheric, Oceanic, and Space Sciences, College of Engineering; University of Michigan; Ann Arbor Michigan USA
5. Department of Physics and Astronomy; Clemson University; Clemson South Carolina USA
6. Physics Department; Colorado State University; Fort Collins Colorado USA
7. Department of Earth and Space Sciences; University of Washington; Seattle Washington USA
8. British Antarctic Survey; Cambridge UK
9. Haystack Observatory; Massachusetts Institute of Technology; Westford Massachusetts USA
10. Arecibo Observatory; Cornell University; Arecibo Puerto Rico
11. Science Applications International Corporation; San Diego California USA
12. High Altitude Observatory; National Center for Atmospheric Research; Boulder Colorado USA
13. National Institute of Information and Communications Technology; Tokyo Japan
14. School of Chemistry and Physics; University of Adelaide; Adelaide, South Australia Australia