1. Physics Department, University of Colorado at Colorado Springs, 1420 Austin Bluffs Pkwy, Colorado Springs, Colorado 80918, USA
2. US Air Force Academy, Space Physics and Atmospheric Research Center Space Physics and Atmospheric Research Center in Cooperative Agreement, 2354 Fairchild Dr US Air Force Academy, Colorado 80840, USA
3. Los Alamos National Laboratory, Space Science and Applications Group, P.O. Box 1663, Los Alamos, New Mexico 87545, USA
4. Plasma Physics Division, United States Naval Research Laboratory, 4555 Overlook Ave., SW Washington, District of Columbia 20375, USA
5. US Air Force Academy-Physics Department Space Physics and Atmospheric Research Center, 2354 Fairchild Dr US Air Force Academy, Colorado 80840, USA