1. Center for Space Physics; Boston University; Boston Massachusetts USA
2. Institute for Scientific Research, Boston College; Chestnut Hill Massachusetts USA
3. Department of Electrical and Computer Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois USA
4. Department of Electrical and Computer Engineering; University of Colorado; Boulder Colorado USA
5. Space Vehicles Directorate; Air Force Research Laboratory; Hanscom Air Force Base Massachusetts USA
6. Plasma Physics Division; Naval Research Laboratory; Washington, D. C. USA
7. MIT Haystack Observatory; Westford Massachusetts USA