Electronic Telegram No. 39
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@CFA.HARVARD.EDU (science)
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S/2003 (379) 1
     J. L. Margot, California Institute of Technology, reports the
discovery on Aug. 14.6 UT of a satellite of (379) Huenna (V = 12.9)
from adaptive optics imaging in H-band with the 10-m W. M. Keck II
telescope on Mauna Kea.  The satellite was observed to follow the
primary at the non-sidereal rate of roughly 10"/hour for a period
exceeding 2 hours.  On Aug. 14.5518 UT, the companion was at a
separation of 0".89 (projected separation 1200 km) in p.a. 34 deg.
The primary to secondary flux ratio in H band is about 165, giving a
diameter ratio of about 13.


NOTE: These 'Central Bureau Electronic Telegrams' are intended to
      be preliminary announcements of items that later appear in the
      formal IAU Circulars.  Citations should normally be made to IAUCs
      rather than to CBETs.

                         (C) Copyright 2003 CBAT
2003 August 14                    (CBET 39)               Brian G. Marsden