¹ Theoretical Division, MS B285, Los Alamos National Laboratory, Los Alamos, NM 87545
² Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510
³ Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195
⁴ Department of Astronomy, MSC 4500, New Mexico State University, P.O. Box 30001, Las Cruces, NM 88003
⁵ Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349
⁶ Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544
⁷ Center for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218
⁸ Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637
⁹ Center for Cosmological Physics, The University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637
¹⁰ Center for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003
¹¹ Department of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213
¹² Department of Astronomy, University of Illinois, 1002 West Green Street, Urbana, IL 61801
¹³ Institut d'Estudis Espacials de Catalunya/CSIC, Gran Capitá 2-4, E-08034 Barcelona, Spain
¹⁴ Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260
¹⁵ Department of Physics of Complex Systems, Eötvös Loránd University, Pf. 32, H-1518 Budapest, Hungary
¹⁶ Institute of Astronomy and Research Center for the Early Universe, School of Science, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
¹⁷ Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721
¹⁸ Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218
¹⁹ Institute for Cosmic Ray Research, University of Tokyo, 5-1-5 Kashiwa, Kashiwa City, Chiba 277-8582, Japan
²⁰ Microsoft Research, 455 Market Street, Suite 1690, San Francisco, CA 94105
²¹ Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany
²² Lucent Technologies, 2000 Lucent Lane, Naperville, IL 60566
²³ Department of Mathematical and Physical Sciences, Japan Women's University, 2-8-1 Mejirodai, Bunkyo, Tokyo 112-8681, Japan
²⁴ US Naval Observatory, Flagstaff Station, P.O. Box 1149, Flagstaff, AZ 86002-1149
²⁵ US Naval Observatory, 3540 Massachusetts Avenue NW, Washington, DC 20392
²⁶ Code 7215, Remote Sensing Division, Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20392
²⁷ National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
²⁸ Astronomical Institute, Tohoku University, Aramaki, Aoba, Sendai 980-8578, Japan
²⁹ ISR-4, MS D448, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545
³⁰ Obserwatorium Astronomiczne na Suhorze, Akademia Pedogogiczna w Krakowie, ulica Podchorążych 2, PL-30-084 Kraców, Poland
³¹ CERN, IT Division, 1211 Geneva 23, Switzerland
³² Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637
³³ Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley CA 94720-8160
³⁴ Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309
³⁵ Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QJ, UK
³⁶ Department of Physics and Astrophysics, Nagoya University, Chikusa, Nagoya 464-8602, Japan
³⁷ SNS-4, MS H820, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545
³⁸ Department of Physics, University of Michigan, 500 East University Avenue, Ann Arbor, MI 48109
³⁹ Institute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UK
⁴⁰ Department of Physics, University of Pennsylvania, Philadelphia, PA 19104
⁴¹ Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180
⁴² CMC Electronics Aurora, 43W752 Route 30, Sugar Grove, IL 60554
⁴³ Department of Astronomy and Research Center for the Early Universe, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
⁴⁴ Joseph Henry Laboratories, Princeton University, Princeton, NJ 08544
⁴⁵ Department of Physics, Rochester Institute of Technology, 84 Lomb Memorial Drive, Rochester, NY 14623-5603
⁴⁶ Department of Astronomy and Astrophysics, 525 Davey Laboratory, Pennsylvania State University, University Park, PA 16802
⁴⁷ Japan Participation Group, c/o Institute for Cosmic Ray Research, University of Tokyo, 5-1-5 Kashiwa, Kashiwa City, Chiba 277-8582, Japan
⁴⁸ University of Zagreb, Department of Physics, Bijenička cesta 32, 10000 Zagreb, Croatia
⁴⁹ Institute for Astronomy, 2680 Woodlawn Road, Honolulu, HI 96822
⁵⁰ Department of Physics and Astronomy, University of Wyoming, Laramie, WY 82071
⁵¹ Adler Planetarium and Astronomy Museum, 1300 Lake Shore Drive, Chicago, IL 60605
⁵² Max-Planck-Institut für extraterrestrische Physik, Giessenbachstrasse 1, D-85741 Garching, Germany
⁵³ Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101
⁵⁴ Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104
⁵⁵ Department of Astronomy, Ohio State University, 140 West 8th Avenue, Columbus, OH 43210
⁵⁶ Max Planck Institut für Astrophysik, Postfach 1, D-85748 Garching, Germany