{
  "bibcode": "2019GCN.23891....1O",
  "body": "M. Oeda, R. Itoh, K. L. Murata, Y. Tachibana, S. Harita, K. Morita,\nK. Shiraishi, K. Iida, M. Niwano, R. Adachi, Y. Yatsu,\nand N. Kawai (Tokyo Tech) report on behalf of the MITSuME collaboration\n\nWe searched for the optical counterpart of GRB 190211A (F. E. Marshall et\nal., GCN\nCircular #23883) with the optical three color (g', Rc, and Ic) CCD cameras\nattached to the MITSuME 50cm telescope of Akeno Observatory, Yamanashi,\nJapan.\n\nThe observation started on 16:55:48.41 UT which corresponds to\n64 sec after the trigger.\nWe detected the point source at the position consistent with the robotic\nNEXT-0.6m telescope\nobservation (D. Xu et al., GCN Circular #23884).\nThe measured magnitudes are listed as follows.\n\nT0+[sec]    MID-UT      T-EXP[sec]        g'       Rc        Ic\n-------------------------------------------------------------------------------------------------------\n~64      16:56:48.41          120              ~18.3      ~17.7     ~17.0\n-------------------------------------------------------------------------------------------------------\nT0+ : Elapsed time after the burst\nT-EXP: Total Exposure time\nWe used GSC2.3 catalog for flux calibration.\nThe magnitudes are expressed in the Vega system.",
  "circularId": 23891,
  "createdOn": 1549970309000,
  "email": "oeda@hp.phys.titech.ac.jp",
  "subject": "GRB190211A: MITSuME Akeno optical observation",
  "submitter": "Motoki Oeda at Tokyo Inst. of Tech.  <oeda@hp.phys.titech.ac.jp>",
  "eventId": "GRB 190211A"
}