{
  "bibcode": "2011GCN.11626....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 the MITSuME collaboration:\n\nWe observed the field of GRB 110201A (Siegel et al., GCN 11622)\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 on2011-02-01 09:59:39 UT (~25 min.\nafter the burst). We did not find any new point source within the\nXRT error circle (Siegel et al., GCNC 11622) 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\n\nT0+[day]   MID-UT   T-EXP[sec]    g'     Rc     Ic\n------------------------------------------------------\n0.16707    13:35:43  5880.0     >21.3  >21.3  >18.7\n------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 11626,
  "createdOn": 1296639595000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB110201A: MITSuME Okayama optical upper limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 110201A"
}