tensen, P. Wurz, K.-H. Glassmeier, C. Shinohara, T. Girard, G. Heinsohn, R. Furfaro, T. Gardner, D. Cheeseman, R. Beatty, J. Ludwinski, T. Kowalkowski, C. Yen, T. Elliott, E. Turtle, K. Strohbehn, J. Janesick, C. Falco, R. Evans University of Arizona (Tucson, mcewen@lpl.arizona.edu), USGS, SwRI/Boulder, U. Bern, JPL, ASU, IGEP, Microsat Systems Inc., Raytheon MS, APL, Sarnoff Corp., Gibble Corp.