1. MS 169-237, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109; visiting astronomer, Palomar Observatory, California Institute of Technology, Pasadena, CA 91125
2. Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125; visiting astronomers, Las Campanas Observatory, Casilla 601, La Serena, Chile
3. Institute for Astronomy, University of Hawaii, Honolulu, HI 96822
4. San Jose State University Foundation, San Jose, CA 95192; visiting astronomer, University of Hawaii 0.6-m and 2.2-m telescopes at Mauna Kea Observatory, Mauna Kea, Hawaii
5. Kitt Peak National Observatory, Tucson, AZ 85719
6. National Aeronautics and Space Administration (NASA) Ames Research Center, Moffett Field, CA 94035; visiting astronomer, Kitt Peak National Observatory, Tucson, AZ 85719
7. Anglo-Australian Observatory, Post Office Box 296, Epping, New South Wales, Australia
8. Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile