1. Centre for Astrophysics University of Southern Queensland Toowoomba Queensland Australia
2. Department of Physics University of New Hampshire Durham NH USA
3. Kotel'nikov Institute of Radio Engineering and Electronics, Fryazino Branch Russian Academy of Sciences Fryazino Russia
4. Department of Physics University of Massachusetts Lowell Lowell MA USA
5. Planetary Science Institute Tuscon AZ USA
6. Predictive Science, Inc. San Diego CA USA
7. Department of Physics and Technology University of Tromsø Tromsø Norway
8. MIT Haystack Observatory Westford MA USA