{
  "bibcode": "2012GCN.14062....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 121211A (Mangano et al., GCNC 14057)\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 2012-12-11 16:29:09 UT (~2.7 h after the burst).\nWe detected the previously reported afterglow (Japelj et al., GCNC 14058)\nin all the three bands.\n\nPhotometric results and three sigma upper limit of the OT are listed below.\nWe used SDSS catalog for flux calibration.\n\n#T0+[day]  MID-UT    T-EXP[sec]   g'   g'_err Rc    Rc_err Ic    Ic_err\n-----------------------------------------------------------------------\n0.15443    17:29:25    6360.0   >20.5         20.4  0.2    19.6  0.3\n0.23818    19:30:01    6360.0    20.9  0.3    21.1  0.3    20.1  0.3\n------------------------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 14062,
  "createdOn": 1355279907000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 121211A: MITSuME Okayama Optical Observation",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 121211A"
}