PHILLIPS, Michael, Earth and Planetary Sciences, University of Tennessee, Knoxville, 1621 Cumberland Ave, 602 Strong Hall, Knoxville, TN 37996, VIVIANO, Christina E., Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD 20723, MOERSCH, Jeffrey E., Earth and Planetary Sciences, University of Tennessee, Knoxville, Knoxville, TN 37996, ROGERS, A. Deanne, Geosciences, Stony Brook University, 255 Earth and Space Sciences, Stony Brook, NY 11794-2100, MCSWEEN, Harry Y., Department of Earth & Planetary Sciences, University of Tennessee, 1612 Cumberland Ave., 602 Strong Hall, Knoxville, TN 37996 and SEELOS, Frank P., Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723