Walsh, B. M. (Boston Univ. Boston, MA, United States)
Niehof, J. (New Hampshire Univ. Durham, NH, United States)
Collier, M. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Welling, D. T. (Michigan Univ. Ann Arbor, MI, United States)
Sibeck, D. G. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mozer, F. S. (California Univ. Berkeley, CA, United States)
Fritz, T. A. (Boston Univ. Boston, MA, United States)
Kuntz, K. D. (Johns Hopkins Univ. Baltimore, MD, United States)