[vsnet-grb-info 17415] GRB 160104A: Xinglong TNT optical observation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  18823
SUBJECT: GRB 160104A: Xinglong TNT optical observation
DATE:    16/01/04 16:27:58 GMT
FROM:    L.P. Xin at NAOC  <xlp at bao.ac.cn>

L. P. Xin,   X. F. Wang,  J. Y. Wei,  Y. L. Qiu,  J. S. Deng, 
J. Wang,  X. H. Han, C. Wu, D. Xu on behalf of EAFON report:
 
We  observed  GRB 160104A (Melandri et al. GCN 18815)  with 
Xinglong  0.8-m TNT telescope at 11: 26:01UT, 111 sec after the burst.
 
The optical afterglow (Guidorzi et al., GCN 18816; Saito GCN 18817; 
Yurkov et al., GCN 18820 ) was  detected in our white images.
The brightness of the optical afterglow is about 18.45 mag 
at the mid time  of 121 sec afer the burst,  
calibrated by the USNO B1.0 star (RA=05:07:08  DEC=11:02:02  R2=16.25mag).

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