<k><mods:affiliation>Lowell Observatory, 1400 West Mars Hill Road, Flagstaff, Arizona 86001; Astronomical Observatory of Kharkov University, Sumskaya str. 35, Kharkov 310022, Ukraine; Observatoire de Paris, 92195 Meudon Principal Cedex, France; Istituto Astronomico, Universitá di Roma, "La Sapienza," via Lancisi 29, I-00161, Rome, Italy; Perth Observatory, Bickley, Western Australia; Istituto di Astronomia dell Universitá di Catania, Viale A. Doria 6, 95125 Catania, Italy; Bureau des Longitudes, 77, Avenue Denfert Rochereau, 75014 Paris, France; People's Astronomical Observatory, and Planetarium, "Varovnik" No. 2, 5300 Gabrovo, Bulgaria; Dipartimento di Fisica Universitá di Padova, V. Marzolo 8, I-3513l Padova, Italy; University of Kent, Canterbury, UK; Jet Propulsion Laboratory Pasadena, California; Raj 4, Brno Observatory, 627 00 Brno, Czech Republic; Astronomical Observatory of Urals University, Russia; Observatorio National, DAF, Rua Gal. José Cristino 77, 20921 Rio de Janeiro, Brazil; Astronomy Programs, Computer Sciences Corporation, Space Telescope Science Institute, Baltimore, Maryland 21218; Astronomical Observatory, Adam Mickiewicz University, Poznan, Poland; National Optical Astronomy Observatories, Tucson, Arizona; National Astronomical Observatory, Tokyo, Japan; Planetary Science Institute, Tucson, Arizona; Physics Department, Central Michigan University, Mt. Pleasant, Michigan 48859; Astronomy Institute of the Academy of Sciences, Ondrejov, Czech Republic; Institute for Astronomy, University of Hawaii, Honolulu, Hawaii 96822; Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona 85721; Astronomical Observatory of Odessa University, Shevchenko Square, Odessa 270014, Ukraine; and Astronomical Institute of the Uzbekistan Academy of Sciences, Astronomicheskaya str. 33, Tashkent 700000, Uzbekistan E-mail: spencer@lowell.edu</mods:affiliation>
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