[vsnet-grb-info 15872] GRB 141212A: MITSuME Akeno upper limits

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  17160
SUBJECT: GRB 141212A: MITSuME Akeno upper limits
DATE:    14/12/12 13:38:41 GMT
FROM:    Taketoshi Yoshii at Tokyo Tech  <yoshii.t.ac at m.titech.ac.jp>

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.