{
  "bibcode": "2017GCN.21295....1H",
  "body": "S. Harita, Y. Saito, R. Itoh,  Y. Tachibana, T. Yoshii, \nK. Morita, T. Ozawa, H. Mamiya, K. Shiraishi, Y. Yatsu, and N. Kawai (Tokyo Tech)\nreport on behalf of the MITSuME collaboration:\n\nWe searched for the optical counterpart of GRB 170705A (R. L. C. Starling et al.,\nGCN Circular #21289) with the optical three color (g', Rc, and Ic) CCD cameras \nattached to the MITSuME 50cm telescope of Akeno Observatory, Yamanashi, Japan.\n\nThe observation started on 2017-07-05 11:21:20.84 UT. \nWe did not find any new point source within XRT circle in all three bands. \nWe obtained following limits for the magnitudes.\n\nT0+[hour]    MID-UT      T-EXP[sec]         g'              Rc                    Ic\n-------------------------------------------------------------------------------------------------------\n~8.59       12:29:51            1320          >18.5        >17.9                >17.8\n-------------------------------------------------------------------------------------------------------\n\nT0+ : Elapsed time after the burst\nT-EXP: Total Exposure time\nWe used GSC2.3 catalog for flux calibration.",
  "circularId": 21295,
  "createdOn": 1499268471000,
  "email": "yoshii.t.ac@m.titech.ac.jp",
  "subject": "GRB 170705A: MITSuME Akeno Optical Observation",
  "submitter": "Taketoshi Yoshii at Tokyo Tech  <yoshii.t.ac@m.titech.ac.jp>",
  "eventId": "GRB 170705A"
}