1. Ann and H.J. Smead Department of Aerospace Engineering Sciences University of Colorado Boulder CO USA
2. Department of Physics and Astronomy Clemson University Clemson SC USA
3. Laboratory for Atmospheric and Space Physics University of Colorado Boulder CO USA
4. Space Science Division U.S. Naval Research Laboratory Washington DC USA
5. Space Sciences Laboratory University of California Berkeley Berkeley CA USA
6. Saint Cloud State University St Cloud MN USA
7. Department of Electrical and Computer Engineering University of Illinois at Urbana‐Champaign Urbana IL USA