{
  "bibcode": "2010GCN.11225....1K",
  "body": "D. Kuroda (OAO, NAOJ),  H. Hanayama, T. Miyaji, J. Watanabe (IAO, NAOJ),\nK. Yanagisawa (OAO, NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto)\nand N. Kawai(Tokyo Tech) report on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 100905A (Marshall et al., GCN 11214)\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 2010-09-05 18:56:36 UT (~0.16 day after the\nburst).  We did not find any new point source within the enhanced XRT\nerror circle (Evans et al., GCNC 11219) in all the three bands.\n\n\nThree sigma upper limits of the OT are listed below. We used\nSDSS catalog for flux calibration.\n\nT0+[day]   MID-UT   T-EXP[sec]    g'     Rc     Ic\n------------------------------------------------------\n0.16300    19:02:58  1440.0      >21.1  >21.4  >19.5\n------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 11225,
  "createdOn": 1283763495000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB100905A: Optical upper limits at IAO",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 100905A"
}