Brian J Anderson, Johns Hopkins University, Baltimore, MD, United States, Sarah K. Vines, University of Texas at San Antonio, San Antonio, TX, United States, Viacheslav G Merkin, The Johns Hopkins University, Laurel, MD, United States, Robin J Barnes, JHU/APL, Laurel, MD, United States, Jesper W Gjerloev, Johns Hopkins University - Applied Physics Laboratory, Laurel, MD, United States and J. Michael Ruohoniemi, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States