TITLE: GCN CIRCULAR NUMBER: 12467 SUBJECT: GRB 111020A: Gemini-South i-band observations DATE: 11/10/21 01:58:38 GMT FROM: Wen-fai Fong at CFA W. Fong (Harvard), E. Berger (Harvard) and D. Fox (PSU) report: We imaged the location of the short GRB 111020A (GCN 12460) with GMOS on the Gemini-South 8-m telescope on 2011 October 21.01 UT (mid-time of 17.7 hours post-burst). We obtained 9x180s exposures in i-band with 0.8" seeing. We find no sources within the enhanced XRT error circle (GCN 12463) to a 3-sigma limiting magnitude of i~25 mag. However, we find two faint objects just outside of the XRT error circle with coordinates (J2000): S1: RA = 19:08:12.501 Dec = -38:00:41.80 S2: RA = 19:08:12.698 Dec = -38:00:44.46 S1 has a brightness of i~23.7 mag and appears to be point-like. S2 is fainter, at the threshold of detectability with a brightness of i~25 mag. The nearest galaxy is located at: G1: RA = 19:08:12.231 Dec = -38:00:48.80 with a magnitude of i~23.3 mag, and 6.2" from the center of the XRT error circle.