TITLE: GCN CIRCULAR NUMBER: 12505 SUBJECT: GRB 111029A: KAIT optical limits DATE: 11/10/29 18:03:13 GMT FROM: Weidong Li at UC Berkeley KAIT/LOSS W. Li and A. V. Filippenko, University of California at Berkeley, on behalf of the KAIT GRB team, report: The robotic 0.8-m KAIT located at Lick Observatory responded to GRB 111029A (Swift trigger 506519; Troja et al. GCN 12498) automatically and started the first image at 09:47:15 UT (154.5 seconds after the burst). A series of images were taken in the V, I, and clear filters. No new sources were detected within the Swift/XRT error circle in the KAIT images (single or stacked frames) when compared to the DSS II. We set the following specific limits (calibrated to USNO B1): start UT end UT t_exp(s) mlim (unfilt.) coadd? --------------------------------------------------------------- 09:47:15.0 09:47:17.0 2 18.0 N 09:47:15.0 09:47:46.0 20 19.0 Y (2s x 10)