Huazhi Ge, California Institute of Technology, Pasadena, CA, United States, Chris Moeckel, Space Sciences Laboratory, Berkeley, United States, Imke De Pater, Univ California Berkeley, Berkeley, United States, Andrew P. Ingersoll, California Institute of Technology, Pasadena, United States, Leigh N. Fletcher, University of Leicester, School of Physics and Astronomy, Leicester, United Kingdom, John Rogers, British Astronomical Association, London, United Kingdom, Shinji Mizumoto, ALPO-Japan, Tokyo, Japan, Xi Zhang, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States and Glenn Orton, Jet Propulsion Laboratory/California Institute of Technology, Pasadena, United States