{
  "bibcode": "2011GCN.12533....1S",
  "body": "S. Song, Y. Aoki, R. Usui, K. Kawakami, M. Hayashi, K. Tokoyoda,\nY. Saito, Y. Yatsu, and N. Kawai (Tokyo Tech)  report on behalf of\nthe MITSuME collaboration:\n\nWe observed GRB 111103B (D. Grupe et al, GCN12519) with the\noptical three color (g, Rc, and Ic) CCD camera attached to the MITSuME\n50 cm telescope of Akeno Observatory, Yamanashi, Japan.\n\nWe started the observation about ~10.5 hour after the BAT trigger\nfrom 2011-11-04 9:35:15 UT.  And we did not find any new point source\nwithin the XRT error circle (S. D. Barthelmy  et al, GCN12524) in three bands.\nThe results of photometry (3sigma upper limits) are listed below.\n\n#The photon flux were calibrated against GSC2.3 catalog.\n\nT0+[day]      MID-UT     T-EXP[sec]      g'             Rc           Ic\n---------------------------------------------------------------------------------\n\n 3.7�10^4     9:44:05        1020       -----       >17.9       >18.0\n---------------------------------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 12533,
  "createdOn": 1320500402000,
  "email": "yatsu@hp.phys.titech.ac.jp",
  "subject": "GRB 111103B: MITSuME Akeno Optical upper limits",
  "submitter": "Yoichi Yatsu at Tokyo Tech.  <yatsu@hp.phys.titech.ac.jp>",
  "eventId": "GRB 111103B"
}