Jeffrey Roy Johnson, Johns Hopkins University, Baltimore, MD, United States; Applied Physics Laboratory, Laurel, MD, United States, Abigail Fraeman, California Institute of Technology, Pasadena, CA, United States; NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Briony H. N. Horgan, Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, Melissa S Rice, Western Washington University, Bellingham, WA, United States, Roger C Wiens, Space Science and Applications, Los Alamos, NM, United States; Los Alamos National Laboratory, Los Alamos, NM, United States, Sylvestre Maurice, Institut de Recherche en Astrophysique et Planétologie (IRAP), Toulouse, France and MSL Science Team