{
  "bibcode": "2014GCN.16131....1K",
  "body": "D. Kuroda, K. Yanagisawa, Y. Shimizu, H. Toda (OAO, NAOJ),\nS. Nagayama (NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto)\nand N. Kawai(Tokyo Tech)\nreport on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 140419A (Marshall et al., GCNC 16118)\nwith the optical three color (g', Rc and Ic) CCD camera attached\nto the MITSuME 50cm telescope of Okayama Astrophysical Observatory.\n\nThe observation started on 2014-04-19 11:17:09 UT (~7.2 h after the burst).\nWe detected the previously reported afterglow (Marshall et al., GCNC 16118;\nZheng et al., GCNC 16119) in Rc and Ic bands.\n\nThree sigma upper limit and photometric results of the OT are listed below.\nWe used SDSS catalog for flux calibration.\n\n#T0+[day]  MID-UT    T-EXP[sec]   g'     Rc  Rc_err   Ic  Ic_err\n-----------------------------------------------------------------------\n0.36126    12:47:03    8700.0    >20.1  19.8  0.3    19.1  0.3\n------------------------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 16131,
  "createdOn": 1397979270000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 140419A: MITSuME Okayama Optical Observation",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 140419A"
}