{
  "bibcode": "2009GCN..9225....1X",
  "body": "L.P. Xin, W.K. Zheng, Y.L. Qiu, J.Y. Wei,\nj. Wang, J.S. Deng, Y. Urata and J.Y. Hu \non behalf of EAFON report:\n\nTNT quickly responsed to the GRB 090424 (Swift trigger 350311;\nCannizzo et al. GCN 9223) in automatical mode, the first\nimages was taken start 14:13:36, 87s after the burst.\nThe optical afterglow (Cannizzo et al. GCN 9223; Yuan GCN 9224)\nwas clearly detected in our early white and R bands images,\nafter preliminary reduction, we estimated the afterglow have\nfaded about 3.5 mag from ~100s to ~1000s after the burst. \nObservation is still under going.\n\nThis message may be cited.",
  "circularId": 9225,
  "createdOn": 1240586505000,
  "email": "zwk@bao.ac.cn",
  "subject": "GRB 090424: TNT optical observations",
  "submitter": "W.K. Zheng at NAOC  <zwk@bao.ac.cn>",
  "eventId": "GRB 090424"
}