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GCN Circular 17183

GRB 141212B: MITSuME Akeno upper limits
2014-12-13T17:34:14Z (9 years ago)
Taketoshi Yoshii at Tokyo Tech <>
Y. Yano, T. Yoshii, Y. Saito, Y. Tachibana, H. Ohuchi,
S. Kurita, Y. Ono, T. Fujiwara, Y. Yatsu, and N. Kawai (Tokyo Tech)
report on behalf of the MITSuME collaboration:

We observed the field of GRB 141212B (M. Stamatikos et al., GCN Circular #17159) 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 19:31:43 UT (~6 h after the burst).
We did not find any new point source within the enhanced XRT circle 
(K. L. Page et al., GCN Circular #17174) in all the three bands.

The measured magnitudes are listed below.

T0+[sec]     MID-UT    T-EXP[sec]        g'         Rc        Ic
25180        20:31:06        840            >19.0  >18.8  >18.3
T0+ : Elapsed time after the burst
T-EXP: Total Exposure time
We used GSC2.3 catalog for flux calibration.
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