{
  "bibcode": "2003GCN..2381....1T",
  "body": "K. Torii (RIKEN) reports:\n\n \"A part of the WXM error region of GRB 030913 (HETE trigger 2849) was\nobserved by the Automated Response Telescope at RIKEN (0.25-m f/6.8\nreflector equipped with unfiltered CCD AP6E). The observation started\nat 2003 September 13, 17:08:24 UT (87 s after trigger), and 40 s\nintegration was repeated.\n\n In a stacked frame (12 x 40 s), no new object brighter than about\n14.5 mag (USNO A2.0 red) is identified within the central 30x30\narcminutes area of the WXM position (Seq_Num 2). Further analysis is\nin progress.\"",
  "circularId": 2381,
  "createdOn": 1063481784000,
  "email": "torii@crab.riken.go.jp",
  "subject": "GRB 030913: Optical limit at RIKEN",
  "submitter": "Ken ichi Torii at RIKEN  <torii@crab.riken.go.jp>",
  "eventId": "GRB 030913"
}