Randy Gladstone¹, Thomas K Greathouse¹, Maarten H Versteeg¹, Vincent Hue¹, Joshua Kammer¹, Rohini Giles², Michael W Davis¹, Jean-Claude M C Gerard³, Denis C Grodent³, Bertrand Bonfond³, Barry Mauk⁴, Frederic Allegrini⁵, Robert W Ebert¹, William S Kurth⁶, John E P Connerney⁷, Scott J Bolton¹ and Steven Levin⁸, (1)Southwest Research Institute, San Antonio, TX, United States, (2)Southwest Research Institute, San Antonio, United States, (3)Université de Liège, LPAP - STAR Institute, Liege, Belgium, (4)The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (5)Southwest Research Institute San Antonio, San Antonio, TX, United States, (6)University of Iowa, Department of Physics and Astronomy, Iowa City, IA, United States, (7)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (8)Jet Propulsion Laboratory, Pasadena, CA, United States