1. Space Science Division U.S. Naval Research Laboratory Washington DC USA
2. Now at Computational Physics, Inc. Springfield VA USA
3. Voluntary Emeritus Program U.S. Naval Research Laboratory Washington DC USA
4. Department of Electrical and Computer Engineering Virginia Tech Blacksburg VA USA
5. Center for Space Science and Engineering Research Virginia Tech Blacksburg VA USA
6. Department of Physics Norwegian University of Science and Technology Trondheim Norway
7. Birkeland Centre for Space Science Bergen Norway
8. Department of Chemistry and Biochemistry Old Dominion University Norfolk VA USA
9. Department of Chemistry University of Waterloo Waterloo ON Canada
10. Instituto de Astrofíscia de Andalucía CSIC Granada Spain
11. GATS Driggs ID USA
12. Department of Space, Earth and Environment Chalmers University of Technology Gothenburg Sweden