1. Applied Physics Laboratory; Johns Hopkins University; Laurel MD USA
2. Department of Physics and Astronomy; University of Kansas; Lawrence KS USA
3. University of Virginia; Charlottesville VA USA
4. New York University; New York City NY USA
5. Space Sciences Laboratory; University of California Berkeley; Berkeley CA USA
6. Department of Physics and Astronomy; Benedictine College; Atchison KS USA
7. Finnish Meteorological Institute; Helsinki Finland
8. Earth and Atmospheric Sciences; Georgia Institute of Technology; Atlanta GA USA
9. Central Washington University; Ellensburg WA USA
10. Space Science and Engineering; Southwest Research Institute; San Antonio TX USA
11. Laboratory for Atmospheric and Space Physics; University of Colorado; Boulder CO USA