Observations and simulations of specularly reflected He++ at Earth's quasiperpendicular bow shock

Jeffrey Michael Broll1, Stephen A Fuselier1, Karlheinz J Trattner2, Brian J Anderson3, James L Burch4 and Barbara L Giles5, (1)Southwest Research Institute, San Antonio, TX, United States, (2)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (3)Johns Hopkins University, Baltimore, MD, United States, (4)Southwest Research Institute, San Antonio, United States, (5)NASA Goddard Space Flight Center, Greenbelt, United States