{
  "bibcode": "2016GCN.19946....1F",
  "body": "T.Fujiwara, T. Yoshii, Y.Saito, R.Itoh, Y. Tachibana,\nY.Ono, S.Harita, T.Ozawa, K.Saisho, Y. Yatsu, and N. Kawai (Tokyo Tech)\n\nreport on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 160925A (C. Guidorzi et al., GCN\nCircular #19939) with the optical three color (g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm\ntelescope of Akeno Observatory, Yamanashi, Japan.\n\nThe observation started on 2016-09-26 12:21:13 UT (~0.75 day after the burst) and\nwe detected the optical counterpart in Rc and Ic band.\nThe measured magnitudes were listed as follows.\n\nWe obtained following results for the magnitudes.\n\nT0+[day]    MID-UT      T-EXP[sec]         g'              Rc                      Ic\n-------------------------------------------------------------------------------------------------------\n 0.75           12:53:24          480         15.96 +/- 0.04      16.00 +/- 0.05      15.93 +/- 0.06\n-------------------------------------------------------------------------------------------------------\n\nT0+ : Elapsed time after the burst\nT-EXP: Total Exposure time\nWe used GSC2.3 catalog for flux calibration.",
  "circularId": 19946,
  "createdOn": 1474972405000,
  "email": "yoshii.t.ac@m.titech.ac.jp",
  "subject": "GRB 160925A: MITSuME Akeno Optical Observations",
  "submitter": "Taketoshi Yoshii at Tokyo Tech  <yoshii.t.ac@m.titech.ac.jp>",
  "eventId": "GRB 160925A"
}