1. Department of Atmospheric Sciences Geophysical Institute University of Alaska Fairbanks Fairbanks AK USA
2. Space Science Division Naval Research Laboratory Washington DC USA
3. ASTRA LLC Boulder CO USA
4. Department of Physics Center for Atmospheric and Space Sciences Utah State University Logan UT USA
5. Department of Physics Clemson University Clemson SC USA
6. GATS Boulder CO USA
7. Johns Hopkins University Applied Physics Laboratory Laurel MD USA