{
  "bibcode": "2008GCN..7305....1Y",
  "body": "M. Yoshida, K. Yanagisawa, Y. Shimizu, S. Nagayama (OAO, NAOJ)\nand N. Kawai (Tokyo Tech) report on behalf of the MITSuME\ncollaboration:\n\nWe performed optical imaging observation (g', Rc, and Ic) of the\nfield of GRB 080212 (Ziaeepour et al. GCN 7296) with 50cm MITSuME\ntelescope at Okayama Astrophysical Observatory from UT 17:36:37\n(124 sec after the trigger) to UT 20:30:38 on Feb 12 2008.\n\nWe found a 18 mag star in the vicinity of the XRT position (Goad\net al. GCN 7300). This is the late-K star reported by Berger (GCN\n7304). Although we could not spatially resolve the faint source\nclose to this star reported by Berger (GCN7304), we found that\na fading component is overlaid on the star. This component is\na GRB afterglow candidate. We estimated the magnitudes of the\nfading component by subtracting the flux of the star at 2 hours\nafter the trigger from the star magnitude at early time.\n\nThe estimated magnitudes of the fading component are summarized\nbelow.\n\nObservation date  2008-02-12 UT\n\nmid-UT    exp-T         g'           Rc           Ic\n---------------------------------------------------------\n17:42:47   10min   19.46+-0.26  17.77+-0.15  17.98+-0.22\n18:00:27   22min   > 21.0       18.77+-0.14  18.91+-0.21\n18:19:08   52min   > 21.0       19.88+-0.10  > 20.5\n18:58:37  113min   > 21.0       > 20.5       > 20.5\n---------------------------------------------------------",
  "circularId": 7305,
  "createdOn": 1202903453000,
  "email": "yoshida@oao.nao.ac.jp",
  "subject": "GRB080212: Optical afterglow candidate observed by MITSuME Telescope",
  "submitter": "Michitoshi Yoshida at Okayama Astrophysical Obs  <yoshida@oao.nao.ac.jp>",
  "eventId": "GRB 080212"
}