{
  "bibcode": "2006GCN..4517....1Y",
  "body": "K. Yanagisawa (OAO/NAOJ), H. Toda, and N. Kawai (Tokyo Tech) report\non behalf of the MITSuME collaboration: \n\n\"We have performed photometry of the afterglow candidate (Yanagisawa\net al. GCN 4510,4513) of GRB 060115 (Tagliaferri et al. GCN 4509) for\nthe stacked images of the entire effective exposure (42 min) and for\nthe subdivided half intervals, which were calibrated against the\nUSNO-B1.0 R2 and I2 stars:\n\nEntire exposure:\n    Exposure Start 13:14 (UT)\n    Exposure End   14:10 (UT)\n  \u001b$B!!\u001b(BMidTime        13:42 (UT, T_burst + 34 min)\n    Exp = 60sec x 42\n    Rc = 19.2 +/- 0.4 mag\n    Ic = 18.5 +/- 0.5 mag\n\nFirst half:\n    Exposure Start 13:14 (UT)\n    Exposure End   13:40 (UT)\n  \u001b$B!!\u001b(BMidTime        13:27 (UT, T_burst + 19 min)\n    Exp = 60sec x 21\n    Rc = 19.1 +/- 0.5\n    Ic = 17.9 +/- 0.4\n\nSecond half:\n    Exposure Start 13:42(UT)\n    Exposure End   14:10(UT)\n  \u001b$B!!\u001b(BMidTime        13:56(UT, T_burst + 48 min)\n    Exp = 60sec x 21\n    Rc > 19.1\n    Ic > 19.0\n\nNote that the exposures in different colors are completely synchronized.\nThe comparison images in three bands can be viewed at the following URL:\n\nhttp://bragi.oao.nao.ac.jp/support/telescope/grb50/images/GRB060115A-Fading.pdf.\"",
  "circularId": 4517,
  "createdOn": 1137371713000,
  "email": "nkawai@hp.phys.titech.ac.jp",
  "subject": "GRB 060115: OT photometry with MITSuME",
  "submitter": "Nobuyuki Kawai at Tokyo Tech  <nkawai@hp.phys.titech.ac.jp>",
  "eventId": "GRB 060115"
}