Silvia Protopapa¹, William M Grundy², Dale P Cruikshank³, Dennis Reuter⁴, Catherine Olkin⁵, Kimberly Ennico Smith⁶, Joel Wm Parker⁷, Kelsi N Singer⁷, John R Spencer⁷, S Alan Stern⁸, Anne Verbiscer⁹, Harold A Weaver Jr¹⁰ and the New Horizons Team, (1)Southwest Research Institute Boulder, Boulder, United States, (2)Lowell Observatory, Flagstaff, AZ, United States, (3)NASA, Moffett Field, CA, United States, (4)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (5)Southwest Research Institute Boulder, Boulder, CO, United States, (6)NASA Ames Research Center, Moffett Field, CA, United States, (7)Southwest Research Institute, Boulder, CO, United States, (8)Southwest Research Institute Boulder, Dept Space Studies, Boulder, CO, United States, (9)University of Virginia, Charlottesville, VA, United States, (10)The Johns Hopkins University, Laurel, MD, United States