[IAUC] CBET 1254: 20080212 : (153591) 2001 SN_263

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                                                  Electronic Telegram No. 1254
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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CBAT en CFA.HARVARD.EDU (science)
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(153591) 2001 SN_263
     M. C. Nolan, E. S. Howell, Arecibo Observatory; L. A. M. Benner,
S. J. Ostro, and J. D. Giorgini, Jet Propulsion Laboratory; M. W. Busch,
California Institute of Technology; L. M. Carter and R. F. Anderson,
Smithsonian Institution; C. Magri, University of Maine; D. B. Campbell and
J. L. Margot, Cornell University; and R. Vervack, Johns Hopkins University,
report that Arecibo radar delay-Doppler images (2380 MHz, 12.6 cm) obtained
on 2008 Feb. 12 show that minor planet (153591) is a triple system.
Based on range extents at 75-m resolution, preliminary estimates of average
diameters are 2 km, 1 km, and 400 m for the three components.


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                         (C) Copyright 2008 CBAT
2008 February 12                 (CBET 1254)              Daniel W. E. Green