TITLE: GCN CIRCULAR NUMBER: 12685 SUBJECT: GRB 111215A: MITSuME Akeno Optical upper limits DATE: 11/12/15 17:39:51 GMT FROM: Yoichi Yatsu at Tokyo Tech. R. Usui, Y. Aoki, S. Song, M. Hayashi, K. Kawakami, K. Tokoyoda, Y. Saito, Y. Yatsu, and N. Kawai (Tokyo Tech) report on behalf of the MITSuME collaboration: We observed GRB 111215A (S. R. Oates et al, GCN12681) with the optical three color (g, Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope of Akeno Observatory, Yamanashi, Japan. We started the observation 387 sec after the BAT trigger from 2011-12-15 14:10:35 UT. And we did not find any new point source within the XRT error circle (S. R. Oates et al, GCN12681) in the three bands. The results of photometry (3sigma upper limits) are listed below. #The photon flux were calibrated against GSC2.3 catalog. T0+[sec] MID-UT T-EXP[sec] g' Rc Ic ---------------------------------------------------------------------------------------- 387 14:33:55 2700 > 19.3 > 19.4 > 19.0 ---------------------------------------------------------------------------------------- T0+ : Elapsed time after the burst [sec] T-EXP: Total Exposure time [sec]