Circular No. 8217
Central Bureau for Astronomical Telegrams

New Satellite of Uranus S/2003 U3
     A new candidate (R = 25.1-25.3) for an outer satellite of
Uranus was discovered by S. S. Sheppard, University of Hawaii, on
images obtained by D. C. Jewitt and himself on Aug. 29 and 30 with
the Subaru 8.2-m reflector at Mauna Kea.  After they had also
observed the object with the Gemini 8.2-m reflector on Sept. 20,
B. G. Marsden tentatively identified the object with a satellite
candidate observed by M. Holman and J. Kavelaars on the single
night of 2001 Aug. 13 with the 4-m Blanco reflector at Cerro Tololo
(cf. IAUC 7980, 8213, 8216), a result confirmed by Kavelaars'
recognition and measurement yesterday of a 2001 Aug. 25 image with
the Canada-France-Hawaii telescope.  Full astrometry, Marsden's
orbital elements (a = 0.098 AU, e = 0.78, i = 51 deg, H = 12.7),
and an ephemeris appear on MPEC 2003-T58.

                      (C) Copyright 2003 CBAT
2003 October 9                 (8217)            Daniel W. E. Green


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