Jack William Conrad¹, Francis Nimmo², Ross A Beyer³, Paul Schenk⁴, Carver Jay Bierson¹, Jeffrey Moore⁵ and New Horizons GGI Team, (1)University of California Santa Cruz, Santa Cruz, CA, United States, (2)University of California-Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, (3)NASA Ames Research Center, Moffett Field, CA, United States, (4)Lunar and Planetary Institute, Houston, TX, United States, (5)NASA Ames Res. Center, Moffett Field, CA, United States