{
  "bibcode": "2015GCN.17883....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 MITSuME and OISTER collaboration:\n\nWe observed the field of GRB 150527A (Evans et al., GCNC 17874)\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 2015-05-27 12:57:14 UT (~6.1 h after the burst).\nWe could not detect the previously reported afterglow (Butler et al., GCNC\n17527) in all the three bands.\n\nThree sigma upper limits of the OT are listed below.\nWe used GSC2.3 catalog for flux calibration.\n\n#T0+[day]  MID-UT    T-EXP[sec]   g'     Rc     Ic\n-----------------------------------------------------\n0.29760    13:57:27    5760.0   >19.5  >19.2  >18.3\n-----------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 17883,
  "createdOn": 1432772458000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 150527A: MITSuME Okayama upper limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 150527A"
}