1. Mechanical, Materials, and Aerospace Engineering DepartmentIllinois Institute of Technology Chicago Illinois USA
2. Bradley Department of Electrical and Computer EngineeringVirginia Polytechnic Institute and State University Blacksburg Virginia USA
3. Johns Hopkins University Applied Physics Laboratory Laurel Maryland USA
4. Geophysical InstituteUniversity of Alaska Fairbanks Fairbanks Alaska USA
5. Atmospheric and Space Technology Research Associates Boulder Colorado USA