Daniel R Weimer, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, Piyush M Mehta, West Virginia University, Morgantown, WV, United States, W Kent Tobiska, Space Environment Technologies, Pacific Palisades, CA, United States, Martin G Mlynczak, NASA Langley Research Ctr, Hampton, VA, United States and Linda A Hunt, SSAI, Hampton, VA, United States