GCN Circular 21295
Subject
GRB 170705A: MITSuME Akeno Optical Observation
Date
2017-07-05T15:27:51Z (7 years ago)
From
Taketoshi Yoshii at Tokyo Tech <yoshii.t.ac@m.titech.ac.jp>
S. Harita, Y. Saito, R. Itoh, Y. Tachibana, T. Yoshii,
K. Morita, T. Ozawa, H. Mamiya, K. Shiraishi, Y. Yatsu, and N. Kawai (Tokyo Tech)
report on behalf of the MITSuME collaboration:
We searched for the optical counterpart of GRB 170705A (R. L. C. Starling et al.,
GCN Circular #21289) with the optical three color (g', Rc, and Ic) CCD cameras
attached to the MITSuME 50cm telescope of Akeno Observatory, Yamanashi, Japan.
The observation started on 2017-07-05 11:21:20.84 UT.
We did not find any new point source within XRT circle in all three bands.
We obtained following limits for the magnitudes.
T0+[hour] MID-UT T-EXP[sec] g' Rc Ic
-------------------------------------------------------------------------------------------------------
~8.59 12:29:51 1320 >18.5 >17.9 >17.8
-------------------------------------------------------------------------------------------------------
T0+ : Elapsed time after the burst
T-EXP: Total Exposure time
We used GSC2.3 catalog for flux calibration.