{
  "bibcode": "2009GCN..9114....1X",
  "body": "L.P. Xin, W.K. Zheng, Y.L. Qiu, J.Y. Wei, J. Wang, \nJ.S. Deng, Y. Urata and J.Y. Hu on behalf of EAFON report:\n\nWe have observed GRB 090408 (Stroh et al., GCN 9110)\nwith Xinglong TNT telescope from  Apr.8,16:27:30 (UT),\n1.42 hour after the burst. After combined 18*300s R\nband images, no new source was found in our combined\nimage. The 3 sigma upper limits derived from  USNO-B1.0 \nR2 magnitude is R=21.1 mag at the mean time of 1.67 hour\nsince the trigger.\n\nThis message may be cited.\n\nFor more information about Xinglong GRBs Follow-up\nobservations, please visit the website:\nhttp://www.xinglong-naoc.org/grb/",
  "circularId": 9114,
  "createdOn": 1239253587000,
  "email": "xlp@bao.ac.cn",
  "subject": "GRB 090408: Xinglong TNT optical Upper Limit",
  "submitter": "L.P. Xin at NAOC  <xlp@bao.ac.cn>",
  "eventId": "GRB 090408"
}