Mihaly Horanyi¹, Neal J Turner², Conel Alexander³, Nicolas Altobelli⁴, Tibor Balint⁵, Julie C Castillo⁵, Bruce Draine⁶, Maria Lugaro⁷, Cécile Engrand⁸, Jon Hillier⁹, Hope Ishii¹⁰, Sascha Kempf¹, Sihane Merouane¹¹, Tobin L Munsat¹², David Nesvorny¹³, Larry R Nittler¹⁴, Petr Pokorny¹⁵, Frank Postberg¹⁶, Ralf Srama¹⁷, Thomas Stephan¹⁸, Veerle J Sterken¹⁹, Zoltan Sternovsky²⁰, Rhonda Stroud²¹, Jamey R Szalay²², Andrew Westphal²³ and Diane H Wooden²⁴, (1)LASP/University of Colorado, Boulder, CO, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)Carnegie Institution for Science, Department of Terrestrial Magnetism, Washington, DC, United States, (4)European Space Agency, Villanueva de la Canada, Spain, (5)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (6)Princeton University, Princeton, United States, (7)Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Budapest, Hungary, (8)Centre de Sciences Nucléaires et de Sciences de la Matiere - CSNSM, 91405 Orsay, France, (9)Free University of Berlin, Berlin, Germany, (10)University of Hawaii at Manoa, Hawaii Institute of Geophysics and Planetology, Honolulu, HI, United States, (11)Max Planck Institute for Solar System Research, Göttingen, Germany, (12)University of Colorado, Boulder, CO, United States, (13)Southwest Research Institute Boulder, Boulder, CO, United States, (14)Carnegie Institution of Washington, Washington, DC, United States, (15)Catholic University of America, Department of Physics and Astronomy, Washington, DC, United States, (16)Freie Universitӓt Berlin, Berlin, Germany, (17)University of Stuttgart, Stuttgart, Germany, (18)The University of Chicago, Chicago, United States, (19)MPIK / Max-Planck-Institut für Kernphysik, Heidelberg, Germany, (20)Colorado Univ, Boulder, CO, United States, (21)Naval Research Laboratory, Washington, DC, United States, (22)Princeton University, Department of Astrophysical Sciences, Princeton, NJ, United States, (23)Space Sciences Laboratory, Berkeley, CA, United States, (24)NASA Ames Research Center, Moffett Field, CA, United States