{
  "bibcode": "2015GCN.18402....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 151006A (Kocevski et al., GCNC 18398)\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 2015-10-06 09:56:35 UT (~93 sec after the burst).\nWe did not find any new point source within the enhanced XRT error circle\n(Evans, GCNC 18399) in all the three bands.\n\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-----------------------------------------------------\n0.00707    10:05:12     540.0   >18.6  >18.6  >18.0\n-----------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 18402,
  "createdOn": 1444132368000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 151006A: MITSuME Okayama upper limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 151006A"
}