{
  "bibcode": "2005GCN..3207....1M",
  "body": "T. Mizuno, Y. Arai, H. Yamagishi (Tokyo Gakugei Univ.), \nT. Soyano (Kiso observatory), Y. Urata, T. Tamagawa(RIKEN),\nK.Y. Huang(NCU) on behalf of EAFON report,\n\n\" We have imaged the entire error region of GRB 050408 (GCN3189) with\n1.05m Schmidt telescope at Kiso observatory, Japan in R band.\nUtilizing HETE-2 GCN alert, the observation was started at 16:42 UT\n(20 min after the burst) and lasted to 1 hour.  There is no optical\nemission from the optical afterglow (GCN 3192, GCN 3196) down to a\nlimiting magnitude of R=19.1 as estimated using USNO B1.0 catalog.\n\nThis message may be cited.\"",
  "circularId": 3207,
  "createdOn": 1113049621000,
  "email": "urata@crab.riken.go.jp",
  "subject": "GRB 050408: Optical limit at 20 min after the burst",
  "submitter": "Yuji Urata at RIKEN  <urata@crab.riken.go.jp>",
  "eventId": "GRB 050408"
}