{
  "bibcode": "2006GCN..5548....1S",
  "body": "T. Soyano, H. Mito (Tokyo Univ), and Y. Urata (Saitama Univ)\non behalf of EAFON report:\n\n\" We have made R-band follow-up observation of GRB 060904B afterglow\n(Grup et al.; Rykoff et al; Fugazza et al.) using Kiso 1.05m Schmidt\ntelescope. The observation was started at 15:27 UT September 4, 2006\nand lasted till 19:30. The preliminary analysis shows the optical\nafterglow with 21.4+/-0.2 mag at 15.72 hours after the burst.\nFurther analysis is in progress. \n\nThis message may be sited.\"",
  "circularId": 5548,
  "createdOn": 1157716505000,
  "email": "urata@crystal.heal.phy.saitama-u.ac.jp",
  "subject": "GRB 060904B: Kiso Optical observation",
  "submitter": "Yuji Urata at Saitama U  <urata@crystal.heal.phy.saitama-u.ac.jp>",
  "eventId": "GRB 060904B"
}