S Alan Stern¹, Carly Howett^2,3, Neil Dello Russo⁴, Harold A Weaver⁴, Olivier S Barnouin⁴, Prof. James F Bell III, PhD⁵, Dennis Reuter⁶, Amy A Simon⁷, Hannah Kaplan⁶, Jessica M Sunshine⁸, Keith S. Noll⁶, John R Spencer¹, Simone Marchi¹ and Harold F Levison¹, (1)Southwest Research Institute, Boulder, United States, (2)Planetary Science Institute, Tucson, United States, (3)University of Oxford, Oxford, United Kingdom, (4)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (5)Arizona State University, Tempe, AZ, United States, (6)NASA Goddard Space Flight Center, Greenbelt, United States, (7)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (8)University of Maryland, College Park, United States