GCN Circular 15481
Subject
GRB 131030A: MITSuME Akeno Optical observation
Date
2013-11-11T06:15:29Z (11 years ago)
From
Taketoshi Yoshii at Tokyo Tech <yoshii.t.ac@m.titech.ac.jp>
T.Tanigawa, T. Yoshii, K. Ito, Y. Saito, Y. Yano, R. Usui, Y. Tachibana,
S. Kurita, Y. Yatsu, and N. Kawai (Tokyo Tech)
report on behalf of the MITSuME collaboration:
We observed the field of GRB 131030A (E. Troja et al., GCN Circular #15402) 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 2013-10-31 09:37:51 UT ( 12.68h after the burst).
We detected the previously reported optical afterglow of GRB131013A (E. Troja et al., GCN Circular #15402) in the Rc and Ic band.
The measured magnitudes were listed below.
T0+[sec] MID-UT T-EXP[sec] g' Rc Ic
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43334 10:45:52 2940 >19.92 19.37+/-0.31 18.94+/-0.27
49357 12:14:44 5760 >20.72 20.05+/-0.30 19.25+/-0.24
57097 14:23:40 3780 >20.38 19.57+/-0.22 >19.51
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T0+ : Elapsed time after the burst [sec]
T-EXP: Total Exposure time [sec]
We used GSC2.3 catalog for flux calibration.