Norbert Krupp, Max-Planck-Institut für Sonnensystemforschung, Göttingen, Germany, Anna Kotova, University Paul Sabatier Toulouse III, Toulouse Cedex 09, France, Elias Roussos, Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany, Sven Simon, Georgia Institute of Technology, Atlanta, United States, Lucas Liuzzo, Georgia Institute of Technology Main Campus, Atlanta, GA, United States and Krishan K Khurana, University of California at Los Angeles, Los Angeles, CA, United States