Naoki Bessho^1,2, Li-Jen Chen², Shan Wang^1,2, Michael Hesse³ and Lynn B Wilson III⁴, (1)University of Maryland College Park, College Park, MD, United States, (2)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (3)University of Bergen, Bergen, Norway, (4)NASA Goddard Space Flight Center, Heliospheric Physics Laboratory, Code 672, Greenbelt, MD, United States