1. Catholic University of America Washington DC USA
2. NASA Goddard Space Flight Center Greenbelt MD USA
3. Department of Physics Auburn University Auburn AL USA
4. The Johns Hopkins University Applied Physics Laboratory Laurel MD USA
5. Department of Physics University of New Hampshire Durham NH USA
6. Department of Earth and Space Sciences University of California Los Angeles CA USA
7. Southwest Research Institute San Antonio TX USA
8. Indian Institute of Geomagnetism Navi Mumbai India