{
  "bibcode": "2012GCN.13026....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 120308A (Baumgartner et al., GCNC 13017)\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 012-03-08 12:48:40 UT, (~6.6 h after the burst).\nWe did not find any new point source within the enhanced XRT error\ncircle (Evans et al., GCNC 13023) in all the three bands.\nWe could not detect the previously reported afterglow (Virgili et al., GCNC 13018).\n\n\nPhotometric results of the OT are listed below. We used GSC2.3 catalog\nfor flux calibration.\n\n#T0+[day]  MID-UT    T-EXP[sec]   g'     Rc    Ic\n-----------------------------------------------------\n0.30659    13:35:07    2220.0   >19.4  >19.4  >19.0\n-----------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 13026,
  "createdOn": 1331279193000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB120308A: MITSuME Ishigakijima Optical Upper Limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 120308A"
}