TITLE: GCN CIRCULAR NUMBER: 6838 SUBJECT: GRB 071003: KAIT optical afterglow observations DATE: 07/10/03 09:59:17 GMT FROM: Weidong Li at UC Berkeley KAIT/LOSS W. Li, University of California, Berkeley, on behalf of the KAIT GRB team, report: The robotic 0.76-m Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory observed GRB 071003 detected with Swift (Trigger 292934; Schady et al. GCN 6837). The automatic sequence started at 07:41:37, 42 s after the burst. The BAT location has been monitored in V, I, and clear filters, with varying exposure times. Our image processing pipeline found a new object within the BAT error circle, with the following position: R. A. = 20:07:24.12 DEC. = +10:56:51.8 (J2000) The OA has magnitude of 12.8 (calibrated with USNO B1.0) in a 5s unfiltered exposure started at 07:41:37 UT, 42s after the BAT trigger. The new object is close to a bright foreground star. Further Analysis is ongoing. A finder chart can be found at http://astro.berkeley.edu/~weidong/grb071003.finder.gif This message may be cited.