1. Laboratory for Atmospheric and Space Physics University of Colorado Boulder Boulder CO USA
2. GATS, Inc. Boulder CO USA
3. Department of Atmospheric and Oceanic Sciences University of Colorado Boulder Boulder CO USA
4. Space Science Division U.S. Naval Research Laboratory Washington DC USA
5. Computational Physics, Inc. Boulder CO USA
6. Bradley Department of Electrical and Computer Engineering Virginia Tech Blacksburg VA USA
7. Center for Atmospheric Sciences Hampton University Hampton VA USA