{
  "bibcode": "2011GCN.12725....1X",
  "body": "L.P. Xin,  J.Y. Wei, Y. L. Qiu,  J. Wang, J.S. Deng, \nC. Wu, X. H. Han on behalf of EAFON report:\n\nWe began to observe GRB 111225A ( Siegel  et al., GCN 12720)\nwith Xinglong TNT telescope from 10:50:40  (UT), about 7 hour  after \nthe burst.  \n\nPreliminary analysis shows that the brightness of the optical afterglow counterpart ( Siegel  et al., GCN 12720, Klotz et al. GCN 12722, \nAdria et al. GCN 12723) has decayed to about R~20.4 mag \nrelatively to USNO B1.O R2 mag, at the mean time of 7.7 hour \nafter the burst.\n\nMore observations are encouraged.\n\nThis message may be cited.\n\nThanks for the observation assistant of TNT telescope at Xinglong observatory.",
  "circularId": 12725,
  "createdOn": 1324819644000,
  "email": "xlp@bao.ac.cn",
  "subject": "GRBv111225A: Xinglong TNT optical afterglow",
  "submitter": "L.P. Xin at NAOC  <xlp@bao.ac.cn>"
}