[1] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA
[2] Univ Hawaii Manoa, Inst Geophys & Planetol, Honolulu, HI 96822 USA
[3] Comp Sci Corp, Sci Programs, Lanham, MD USA
[4] Univ New Mexico, Inst Meteorit, Albuquerque, NM 87131 USA
[5] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA
[6] TechSource, Santa Fe, NM USA
[7] Univ Arizona, Dept Hydrol & Water Resources, Tucson, AZ USA
[8] CALTECH, Jet Propuls Lab, Pasadena, CA 91125 USA
[9] Cornell Univ, Ctr Radiophys & Space Res, Ithaca, NY USA
[10] Calif State Polytech Univ Pomona, Dept Phys, San Luis Obispo, CA USA
[11] Univ Calif San Diego, Dept Chem, La Jolla, CA 92093 USA
[12] Max Planck Inst Chem, D-55128 Mainz, Germany
[13] CNRS, Ctr Detude Spatiale Rayonnements, UPS, Toulouse, France
[14] Inst Space Res, Moscow, Russia
[15] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA