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GCN Circular 6904

Subject
GRB 071011: Xinglong TNT Optical afterglow observations
Date
2007-10-12T19:51:41Z (17 years ago)
From
L.P. Xin at NAOC <xlp@bao.ac.cn>
L.P. Xin, M.Zhai, Y.L. Qiu, J.Y. Wei, J.Y. Hu, J.S. Deng,
Y. Urata, and W.K. Zheng on behalf of EAFON report:
 
We have observed GRB 071011 beginning at 12:46:05.3 UT,
353s after the burst with TNT 80cm and EST 1m telescopes
at xinglong Observatory, A series of Whiete, R and V band
images were obtained, preliminary analysis shows the
optical afterglow reported by S. B. Cenko (GCN 6895), faded
continuly. Derived from USNO-A2.0 R magnitude,
We find the early time White band magnitude:
 
---------------------------------------------------
(sec after the burst )          magnitude           merr
  363.053                      17.88143             0.08
  407.981                      18.02971             0.09
  498.701                      18.28329             0.10
  657.677                      18.52271             0.10
  834.797                      19.55457             0.08
  
Further analysis is under going.
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