{
  "bibcode": "2005GCN..4024....1T",
  "body": "K. Torii (Osaka U.) reports:\n\n The error region of Swift GRB 050922B (Norris et al. GCN 4008) was\nobserved by the 14 inch Automated Response Telescope. BVRcIc imaging\nstarted at 2005 September 22, 15:07:42 UT (342 s after the trigger)\nand 60 s integration was repeated.\n\n Due to low transparency and intermittent clouds, useful images were\nobtained after 15:16:47 UT. Preliminary analysis gives the following\n3-sigma upper limits for an optical counterpart of the Swift XRT\nafterglow (GCN 4008).\n\n------------------------------------------\nStartUT\tFilter\tLimit\tExposure\n------------------------------------------\n15:17:55 Rc\t15.5\t60s\t\n17:02:44 Ic\t17.1\t40x60s\t\n------------------------------------------",
  "circularId": 4024,
  "createdOn": 1127458276000,
  "email": "torii@crab.riken.go.jp",
  "subject": "GRB 050922B: optical limit",
  "submitter": "Ken ichi Torii at RIKEN  <torii@crab.riken.go.jp>",
  "eventId": "GRB 050922B"
}