GCN Circular 14454
Subject
GRB 130427A: MITSuME Akeno Optical observation(T0+8000s~)
Date
2013-04-27T11:19:18Z (11 years ago)
From
Yoichi Yatsu at Tokyo Tech. <yatsu@hp.phys.titech.ac.jp>
Y. Yatsu, Y. Yano, R. Usui, Y. Tachibana, K. Ito, T. Yoshii,
S. Kurita, Y. Saito, and N. Kawai (Tokyo Tech)
report on behalf of the MITSuME collaboration:
We observed GRB 130427A (Maselli et al., GCNC 14448) with an
optical tri-color (g, Rc, and Ic) camera attached to the MITSuME
50 cm telescope of Akeno Observatory, Yamanashi, Japan.
The observation started on 2013-04-27 10:06:09.60 UT (8293 sec after the
trigger).
And we found the optical counterpart reported in the twilight sky.
The measured magnitudes were listed below.
MID-MJD T-EXP[sec] g' Rc Ic
-------------------------------------------------------------------------------------------
56409.4231929 360 15.66+/-0.10 15.03+/-0.07 14.71+/-0.09
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T-EXP: Total Exposure time [sec]
(The photon flux were calibrated against GSC2.3 catalog.)