{
  "bibcode": "2011GCN.12293....1K",
  "body": "\u001b$B3'MM\u001b(B\n\n\u001b$B9uED$G$9!#\u001b(B\n\u001b$B:rHU$N\u001b(BGRB110820A\u001b$B$N@P3@Eg$N7k2L$G$9!#\u001b(B\n\u001b$B2V;3$5$s$,4QB,$r$7$F$/$l$^$7$?!#\u001b(B\n\nD. 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 110820A (Troja et al., GCNC 12288)\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 17:47:41 UT (~9 min after the burst).\nWe did not find any new point source within the enhanced XRT error\ncircle (Beardmore et al., GCNC 12291) in all the three bands.\n\nThree sigma upper limits of the OT are listed below. We used GSC2.3\ncatalog for flux calibration.\n\n\n#T0+[day]  MID-UT    T-EXP[sec]   g'    Rc    Ic\n----------------------------------------------------\n0.04719    18:46:24    5280.0   >20.6 >21.3 >19.9\n----------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 12293,
  "createdOn": 1313893976000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB110820A: MITSuME Ishigakijima Optical Upper Limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 110820A"
}