Ronald Kwok, Jet Propulsion Laboratory, Pasadena, CA, United States, Sahra Kacimi, NASA JPL, Pasadena, CA, United States, Melinda Webster, NASA Goddard Space Flight Center, Greenbelt, United States, Thorsten Markus, NASA Goddard Space Flight Ctr, Greenbelt, MD, United States and Nathan T Kurtz, NASA Goddard, Greenbelt, MD, United States