{
  "bibcode": "2014GCN.16794....1K",
  "body": "D. Kuroda (OAO, NAOJ),  H. Hanayama, T. Miyaji, J. Watanabe (IAO, NAOJ),\nK. Yanagisawa (OAO, NAOJ), S.Nagayama (NAOJ), M. Yoshida (Hiroshima),\nK. Ohta (Kyoto) and N. Kawai(Tokyo Tech)\nreport on behalf of the MITSuME and OISTER collaboration:\n\nWe observed the field of GRB 140907A (Krimm et al., GCNC 16788)\nwith the optical three color (g', Rc and Ic) CCD camera attached\nto the Murikabushi 1m telescope of Ishigakijima Astronomical\nObservatory.\n\nThe observation started on 2014-09-07 16:18:10 UT (~11 min after the burst).\nWe detected the previously reported afterglow (Xu et al., GCNC 16789;\nKuin and Krimm, GCNC 16791) in all the three bands.\n\nPhotometric results of the OT are listed below.\nWe used GSC 2.3 catalog for flux calibration.\n\n#T0+[day]  MID-UT    T-EXP[sec]  g'    g'_err  Rc    Rc_err  Ic    Ic_err\n--------------------------------------------------------------------------\n0.01128    16:23:22     540.0    17.97 0.05    17.07 0.03    16.44 0.03\n0.14407    19:34:36     540.0    19.73 0.12    19.36 0.11    18.48 0.11\n--------------------------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 16794,
  "createdOn": 1410137244000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 140907A: MITSuME Ishigakijima Optical Observation",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 140907A"
}