1. Department of Electrical and Computer Engineering University of Illinois at Urbana‐Champaign Urbana IL USA
2. Space Sciences Laboratory University of California Berkeley CA USA
3. Space Science Division U.S. Naval Research Laboratory Washington DC USA
4. Space Systems Research Corporation Alexandria VA USA
5. Laboratory of High Energy Physics and Astrophysics Oukaimeden Observatory FSSM Cadi Ayyad University Marrakech Morocco