{
  "bibcode": "2012GCN.13956....1K",
  "body": "D. Kuroda (OAO, NAOJ),  H. Hanayama, T. Miyaji, J. Watanabe (IAO, NAOJ),\nK. Yanagisawa (OAO, NAOJ), S.Nagayama (NAOJ), M. Yoshida (Hiroshima),\nK. Ohta (Kyoto) and N. Kawai(Tokyo Tech)\nreport on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 121108A (Ukwatta et al., GCNC 13952)\nwith the optical three color (g', Rc and Ic) CCD camera attached\nto the Murikabushi 1m telescope of Ishigakijima Astronomical\nObservatory.\n\nThe observation started on 2012-11-08 18:29:39 UT (~42 min after the\nburst). We did not find any new point source within the XRT circle\n(Ukwatta et al., GCNC 13952) in all the three bands.\n\nThree sigma upper limits of the OT are listed below. We used\nGSC2.3 catalog for flux calibration.\n\nT0+[day]   MID-UT   T-EXP[sec]    g'     Rc     Ic\n------------------------------------------------------\n0.06526    19:21:37    5820.0   >22.6  >22.0  >20.0\n------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 13956,
  "createdOn": 1352425082000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 121108A: MITSuME Ishigakijima upper limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 121108A"
}