*Daniel Jay Scheeres¹, J W McMahon¹, A S French¹, A B Davis¹, D N Brack¹, S Chesley², D Farnocchia², Y Takahashi², R S Park², J Leonard³, P Antreasian³, K Getzandanner⁴, A Liounis⁴, D E Highsmith⁴, D Rowlands⁴, E Mazarico⁴, M Moreau⁴, P Tricarico⁵, O S Barnouin⁶, M G Daly⁷, R W Gaskell⁵, E E Palmer⁵, J Weirich⁵, C L Johnson⁸, M M Al Asad⁸, J A Seabrook⁷, J Roberts⁷, C W Hergenrother⁹, M C Nolan⁹, D S Lauretta⁹ (1.University of Colorado Boulder, 2.Jet Propulsion Laboratory, 3.KinetX, 4.Goddard Space Flight Center, 5.Planetary Sciences Institute, 6.Applied Physics Laboratory, 7.York University, 8.University of British Colombia, 9.Lunar and Planetary Laboratory, University of Arizona)