Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC, United States; Lunar and Planetary Institute, Universities Space Research Association, Houston, TX, United States
NASA Goddard Space Flight Center, Greenbelt, MD, United States
The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Brown University, Providence, RI, United States
Case Western Reserve University, Cleveland, OH, United States
The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC, United States