Sylvain Piqueux¹, Jennifer Buz², Christopher S Edwards³, Joshua Bandfield⁴, Armin Kleinboehl¹, David M Kass¹ and Paul Ottinger Hayne⁵, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)California Institute of Technology, Pasadena, CA, United States, (3)Northern Arizona University, Astronomy and Planetary Science, Flagstaff, AZ, United States, (4)Space Science Institute, Boise, ID, United States, (5)University of Colorado, Boulder, CO, United States