1. Department of Physics University of Texas at Arlington Arlington TX USA
2. Geomagnetism Program Geologic Hazards Science Center U.S. Geological Survey Denver CO USA
3. Goddard Planetary Heliophysics Institute University of Maryland Baltimore MD USA
4. Geospace Physics Laboratory NASA Goddard Space Flight Center Greenbelt MD USA
5. Department of Physics The Catholic University of America Washington DC USA
6. Space Science and Applications Los Alamos National Laboratory Los Alamos NM USA