TITLE: GCN CIRCULAR NUMBER: 19571 SUBJECT: GRB 160624A: MITSuME Ishigakijima upper limits DATE: 16/06/25 01:40:48 GMT FROM: Daisuke Kuroda at OAO/NAOJ D. Kuroda (OAO, NAOJ), H. Hanayama, T. Miyaji, J. Watanabe (IAO, NAOJ), K. Yanagisawa (OAO, NAOJ), S.Nagayama (NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto) and N. Kawai(Tokyo Tech) report on behalf of the MITSuME and OISTER collaboration: We observed the field of GRB 151029A (D'Ai et al., GCNC 19560) with the optical three color (g', Rc and Ic) CCD camera attached to the Murikabushi 1m telescope of Ishigakijima Astronomical Observatory. The observation started on 2016-06-24 15:22:38 UT (~3.9h after the burst). We did not find any new point source within the enhanced XRT circle (Beardmore et al., GCNC 19566) in all the three bands. Three sigma upper limits of the OT are listed below. We used GSC2.3 catalog for flux calibration. #T0+[day] MID-UT T-EXP[sec] g' Rc Ic ----------------------------------------------------- 0.17131 15:33:41 1740.0 >20.5 >20.1 >19.3 ----------------------------------------------------- T0+ : Elapsed time after the burst [day] T-EXP: Total Exposure time [sec]