1. E. O Hulburt Center for Space Research; Naval Research Laboratory; Washington, DC USA.
2. Goddard Earth Science and Technology Center; Baltimore MD USA.
3. Plasma Physics Division; Naval Research Laboratory; Washington DC USA.
4. Los Alamos National Laboratory; Los Alamos NM USA.
5. Computational Physics Inc.; Springfield VA USA.
6. Geophysical Institute; University of Alaska Fairbanks; Fairbanks AL USA.