GCN Circular 18630
Subject
GRB 151118A: MITSuME Akeno optical upper limits
Date
2015-11-21T08:27:02Z (8 years ago)
From
Taketoshi Yoshii at Tokyo Tech <yoshii.t.ac@m.titech.ac.jp>
Y.Yano, T.Fujiwara, T. Yoshii, Y. Saito, Y. Tachibana,
Y.Ono, S.Harita, Y.Muraki, Y. Yatsu, and N. Kawai (Tokyo Tech)
report on behalf of the MITSuME collaboration:
We searched for the optical counterpart of GRB 151118A (A. Amaral���Rogers et al., GCN Circular #18611) 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 2015-11-18 19:14:09 UT (~16.1 h after the burst).
We did not find any new point source within XRT circle in all three bands.
We obtained following limits for the magnitudes.
T0+[sec] MID-UT T-EXP[sec] g' Rc Ic
-------------------------------------------------------------
58059 19:44:17 2520 > 20.3 > 19.6 > 18.4
-------------------------------------------------------------
T0+ : Elapsed time after the burst
T-EXP: Total Exposure time
We used GSC2.3 catalog for flux calibration.