Thomas A Cwik, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Miles W Smith, Jet Propulsion Laboratory, Pasadena, CA, United States, Jean-Pierre Fleurial, Jet Propulsion Laboratory, California Institute Technology, Pasadena, CA, United States, Kris Zacny, Honeybee Robotics, Exploration Technology Group, Pasadena, CA, United States and Dale P Winebrenner, University of Washington Seattle Campus, Seattle, WA, United States