{
  "bibcode": "2007GCN..6922....1K",
  "body": "D. Kuroda, K. Yanagisawa, M. Yoshida (NAOJ), T. Ishimura, and N. Kawai\n(Tokyo Tech) report on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB071011 (Marshall et al., GCN 6882) with\nthe 3-color 50cm MITSuME Telescope at Okayama Astrophysical\nObservatory, and 3-color 105cm Telescope at Ishigakijima Astronomical\nObservatory.  The observations started at 12:50:06 Oct.11 (9m53s after\nthe trigger) at Okayama, and at 13:04:15 Oct.11 (24m02s after the\ntrigger) at Ishigakijima.\n\nIn the co-added images of Ic and Rc bands (Okayama), and\nIc, Rc, and V bands (Ishigakijima), we detected the optical\nafterglow reported by Cenko et al. (GCN 6895).\nWe estimate the magnitudes relative to the USNO B1.0 catalog.\nThe results are followings.\n\n### Results at Okayama ###\nstart       end     Exposure    Ic mag       Rc mag\n-------------------------------------------------------\n12:50:06  13:00:06  10 x 60 s  18.2 +/- 0.4  19.0 +/- 0.3\n13:02:48  13:12:48  10 x 60 s  19.2 +/- 0.4  19.5 +/- 0.4\n13:15:26  13:25:26  10 x 60 s  19.3 +/- 0.4   --\n-------------------------------------------------------\n\n### Results at Ishigakijima ###\nstart       end      Exposure   Ic mag       Rc mag        V mag\n-----------------------------------------------------------------------\n13:04:15  13:19:14   5 x 60 s  18.6 +/- 0.2  20.1 +/- 0.2    --\n13:25:17  13:58:09   5 x 60 s  19.1 +/- 0.4  19.9 +/- 0.2    --\n13:04:15  13:58:09  10 x 60 s     --           --           21.0 +/- 0.5\n------------------------------------------------------------------------",
  "circularId": 6922,
  "createdOn": 1192545708000,
  "email": "nkawai@hp.phys.titech.ac.jp",
  "subject": "GRB 071011: MITSuME Optical Observations",
  "submitter": "Nobuyuki Kawai at Tokyo Tech  <nkawai@hp.phys.titech.ac.jp>",
  "eventId": "GRB 071011"
}