{
  "bibcode": "2007GCN..7087....1I",
  "body": "T. Ishimura, T. Shimokawabe, Y. Mori, Y. Kudou, N. Vasquez, Y. Yatsu, \nand N. Kawai (Tokyo Tech) report on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 071112C (Perri et al., GCN 7059) with\nthe 3-color 50cm MITSuME Telescope at Akeno, Japan starting at\n18:34:39 UT, 102s after the trigger.\n\nIn the images of g' and Rc bands, we detected the optical\ncounterpart reported by several authors (GCNs 7059, 7061, 7062 etc.).\nPhotometric calibration was done using the USNO-B1.0 (Ic-band) and\nNOMAD (g'-bands) catalogs.  The results are following:\n\nstart time  end time     Exposure    g' [mag]       Rc[mag]\n---------------------------------------------------------------\n18:34:39   18:35:39      1 x 60s     17.6 +/- 0.5  17.3 +/- 0.3\n---------------------------------------------------------------",
  "circularId": 7087,
  "createdOn": 1195022658000,
  "email": "nkawai@hp.phys.titech.ac.jp",
  "subject": "GRB 071112C MITSuME Akeno early optical observation",
  "submitter": "Nobuyuki Kawai at Tokyo Tech  <nkawai@hp.phys.titech.ac.jp>",
  "eventId": "GRB 071112C"
}