{
  "bibcode": "2002GCN..1567....1M",
  "body": "K. Matsumoto (Okayama Univ.), T. Kawabata (BAO), K. Ayani (BAO), Y.\nUrata (Titech / RIKEN) and H. Yamaoka (Kyushu Univ.) report:\n\nWe are observing the error circle of GRB021004 obtained by HETE-2\n(Shirasaki et al. GCN 1565) with the Bisei Astronomical Observatory (BAO)\n1.01-m telescope. We have confirmed the optical transient reported by\nFox (GCN 1564). The R-magnitude was about 16.0 at Oct. 4 14:13 UT. The\nobservation and more accurate photometry are in progress.\n\nThis message may be cited.",
  "circularId": 1567,
  "createdOn": 1033751363000,
  "email": "urata@crab.riken.go.jp",
  "subject": "GRB021004: optical observations at Bisei",
  "submitter": "Yuji Urata at RIKEN  <urata@crab.riken.go.jp>",
  "eventId": "GRB 021004"
}