Mark Showalter¹, Susan Benecchi², Marc W Buie³, William M Grundy⁴, James Tuttle Keane⁵, Carey Michael Lisse⁶, Catherine Olkin⁷, Simon Porter⁷, Stuart J Robbins³, Kelsi N Singer³, Anne Verbiscer⁸, Harold A Weaver Jr⁹, Amanda Marie Zangari¹⁰, Douglas P Hamilton¹¹, David E. Kaufmann⁷, Tod Lauer¹², Douglas S. Mehoke¹³, Thomas S. Mehoke¹³, John R Spencer³, Henry Throop¹⁴, Joel Wm Parker³, S Alan Stern¹⁵ and The New Horizons Geology, Geophysics, and Imaging (GGI) Team, (1)SETI Institute Mountain View, Mountain View, CA, United States, (2)Planetary Science Institute Tucson, Tucson, AZ, United States, (3)Southwest Research Institute, Boulder, CO, United States, (4)Lowell Observatory, Flagstaff, AZ, United States, (5)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (6)JHU-APL, Laurel, MD, United States, (7)Southwest Research Institute Boulder, Boulder, CO, United States, (8)University of Virginia Main Campus, Charlottesville, VA, United States, (9)The Johns Hopkins University, Laurel, MD, United States, (10)Unaffiliated, Lexington, MA, United States, (11)University of Maryland College Park, College Park, MD, United States, (12)National Optical Astronomy Observatory, Tucson, AZ, United States, (13)Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States, (14)Planetary Science Institute Albuquerque, Albuquerque, NM, United States, (15)Southwest Research Institute Boulder, Dept Space Studies, Boulder, CO, United States