1. Computational Physics, Inc.; Springfield Virginia USA
2. Naval Research Laboratory; Washington District of Columbia USA
3. Laboratory for Atmospheric and Space Physics; University of Colorado Boulder; Boulder Colorado USA
4. LATMOS, CNRS; Paris France
5. Lunar and Planetary Laboratory; University of Arizona; Tucson Arizona USA
6. Center for Space Physics; Boston University; Boston Massachusetts USA
7. NASA Goddard Space Flight Center; Greenbelt Maryland USA
8. Department of Atmospheric, Oceanic, and Space Sciences; University of Michigan; Ann Arbor Michigan USA
9. National Institute of Aerospace; Hampton Virginia USA