TITLE: GCN CIRCULAR NUMBER: 43083 SUBJECT: EP251212a: KAIT optical upper limit DATE: 25/12/13 09:04:48 GMT FROM: Weikang Zheng at UC Berkeley <weikang@berkeley.edu> WeiKang Zheng (UCB), Xuhui Han (NAOC), Pinpin Zhang (NAOC) and Alexei V. Filippenko (UCB) report on behalf of the KAIT GRB team: The 0.76-m Katzman Automatic Imaging Telescope (KAIT), located at Lick Observatory, observed the field of EP251212a (Yang et al., GCN 43076; Salunke et al., GCN 43082) starting at 11:09, Dec 12 UT, about 4.95 hours after the burst. A set of 38x60s clear (roughly R) filter images were obtained. In our coadd image, we did not detect any new source within the EP-FXT error circle (Yang et al., GCN 43081) down to a limiting mag of 21.2 mag (Vega) at a mid-time of 5.57 hours after the burst. Our result is consistent with the upper limit reported from COLIBRÍ observations (Ducoin et al., GCN 43077). View this GCN Circular online at https://gcn.nasa.gov/circulars/43083. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...