{
  "bibcode": "2002GCN..1485....1U",
  "body": "Y. Urata (1,2), T. Miyata (3), S. Nishiura (3), Y. Nakata (3), T. Aoki\n(3), T. Soyano (3), K. Tarusawa (3), H. Mito(3), A. Yoshida (1,4), \nT. Tamagawa (1) \n1: RIKEN, 2: Titech, 3: Tokyo Univ. 4:AGU\n\n We have observed the optical transient (OT) of GRB020813 (Fox, Blake\n& Price, GCN #1470) with the KISO observatory 1.05 m Schmidt\ntelescope.  We obtained four data sets for each B,V,R,I band during\n2002 Aug. 13 10:52 to 16:46 UT.\n\n We detected the OT in the first data set of B (11:58-12:17 UT) ,\nR(10:52-11:11 UT), I (11:14-11:33 UT). Due to the bad weather\ncondition, we could not detect it in V band. A preliminary analysis\nsuggests that the OT is at R=19 in comparison with the USNO-A2.0 star\n(U0675_34232257).  Analysis of the full data set is underway.\n\nThese images can be found at\nhttp://cosmic.riken.go.jp/urata/GRB/GRB020813/ .\n\nThis message may be cited.",
  "circularId": 1485,
  "createdOn": 1029303396000,
  "email": "urata@crab.riken.go.jp",
  "subject": "GRB 020813 : KISO multiband optical observations",
  "submitter": "Yuji Urata at RIKEN  <urata@crab.riken.go.jp>",
  "eventId": "GRB 020813"
}