Carnegie Institute of Washington, Geophysical Laboratory, Washington, DC 20015 United States ; Carnegie Institute of Washington, Department of Terrestrial Magnetism, Washington, DC 20015 United States
Multimax Inc., 1441 McCormick Dr., Hyattsville, MD 20785 United States
Carnegie Institute of Washington, Geophysical Laboratory, Washington, DC 20015 United States
Carnegie Institute of Washington, Department of Terrestrial Magnetism, Washington, DC 20015 United States
University of California, Institute of Geophysics and Planetary Physics, Riverside, CA 92521 United States ; University of California, Department of Earth Sciences, Riverside, CA 92521 United States