1. R. Carlson, W. Smythe, K. Baines, R. Burns, A. Davies, P. Herrera, J. Hui, T. Johnson, L. Kamp, R. Lopes-Gautier, D. Matson, A. Ocampo, G. Orton, M. Segura, J. Shirley, A. Stevenson, P. Weissman, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
2. E. Barbinis, F. Leader, R. Mehlman, Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095, USA.
3. K. Becker, W. Calvin, H. Kieffer, L. Soderblom, J. Torson, U.S. Geological Survey, Flagstaff, AZ 86001, USA.
4. S. Calcutt, P. Irwin, F. Taylor, A. Weir, Department of Atmospheric, Oceanic, and Planetary Physics, Oxford University, Oxford OX1 3PU, UK.
5. R. Clark, U.S. Geological Survey, Denver, CO 80225, USA.
6. G. Danielson, Division of Geological and Planetary Science, California Institute of Technology, Pasadena, CA 91125, USA.
7. P. Drossart, T. Encrenaz, E. Lellouch, M. Roos-Serote, Observatoire de Paris, Meudon 92150, France.
8. F. Fanale, J. Granahan, G. Hansen, C. Hibbitts, T. McCord, Hawaii Institute of Geophysics and Planetology, University of Hawaii, Honolulu, HI 96822, USA.