GCN Circular 17160

T.Fujiwara, T. Yoshii, Y. Saito, Y. Tachibana, H. Ohuchi, Y. Yano,
S. Kurita, Y.Ono, Y. Yatsu, and N. Kawai (Tokyo Tech)
report on behalf of the MITSuME collaboration:

We observed the field of GRB 141212A (T. N. Ukwatta et al. GCN Circular #17158) with the
optical three color (g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope of Akeno Observatory, Yamanashi, Japan.

The observation started on 2014-12-12 12:14:32 UT (31 sec after the burst).
We did not find any new point source within XRT circle in all three bands.

The measured magnitudes are listed below.

T0+[sec]      MID-UT      T-EXP[sec]         g'           Rc           Ic
--------------------------------------------------------------------------------------
  61        12:17:29         240                    >19.6     >19.0       >18.3
  422      12:28:07         780                    >20.0      >19.6     > 18.9
  422      12:41:18        2340                  >20.5     >20.1       >19.6
--------------------------------------------------------------------------------------
T0+ : Elapsed time after the burst
T-EXP: Total Exposure time
We used GSC2.3 catalog for flux calibration.