1. G. Orton, J. Friedson, T. Martin, P. Yanamandra-Fisher, Mail Stop 169-237, Jet Propulsion Laboratory (JPL), California Institute of Technology, Pasadena, CA 91109
2. J. L. Ortiz, Mail Stop 169-237, JPL, and Instituto de Astrofisica de Andalucia, CSIC, P.O. Box 3004, 18080 Granada, Spain
3. K. Baines, Mail Stop 183-601, JPL
4. G. Bjoraker, D. Deming, D. Jennings, G. McCabe, P. Sada, Code 693, NASA Goddard Space Flight Center, Greenbelt, MD 20771
5. U. Carsenty, DLR Institute for Planetary Exploration, Rudower Chaussee 5, D-12489 Berlin, Germany
6. F. Colas, Bureau des Longitudes, 75015 Paris, France
7. A. Dayal and W. Hoffmann, Stewart Observatory, Univ. of Arizona, Tucson, AZ 85721
8. P. Drossart and J. Lecacheux, DESPA, Observatoire de Paris-Meudon, 92195 Meudon Cedex, France
9. E. Frappa and P. Laques, Observatoire Midi-Pyrenees, 65200 Bagneres de Bigorre, France
10. J. Goguen, Mail Stop 183-501, JPL
11. W. Golisch, D. Griep, C. Kaminski, J. Hora, Institute for Astronomy, Univ. of Hawaii, Honolulu, HI 96822
12. C. Hernandez, 9430 S.W. 29 Terrace, Miami, FL 33165
13. J. Kuhn, H. Lin, J. Varsik, National Solar Observatory, Sunspot, NM 88349
14. S. Limaye, Space Science and Engineering Center, Univ. of Wisconsin, Madison, WI 53706
15. T. Momary, 3806 Geology Building, Univ. of California, Los Angeles, CA 90024-1567
16. D. Parker, 12911 Lerida Street, Coral Gables, FL 33156
17. R. Puetter, CASS, Univ. of California at San Diego, La Jolla, CA 92093-0111
18. M. Ressler, Mail Stop 169-506, JPL
19. G. Reyes, Mail Stop 300-329, JPL
20. J. Spencer, Lowell Observatory, 1400 Mars Hill Road, Flagstaff, AZ 86001
21. J. Spitale and S. Stewart, Division of Geological and Planetary Sciences, 170-20, California Institute of Technology, Pasadena, CA 91125
22. J. Warell, Uppsala Astronomical Observatory, Box 515, S-75120 Uppsala, Sweden
23. W. Wild, Department of Astronomy and Astrophysics, Univ. of Chicago, Chicago, IL 60637
24. G. Fazio, Smithsonian Astrophysical Observatory, Cambridge, MA 02138
25. L. Deutsch, Five College Astronomy Department, Univ. of Massachusetts, Amherst, MA 01003.