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GCN Circular 23622

Subject
GRB 190106A: GWAC-F60B optical detection
Date
2019-01-06T15:40:35Z (5 years ago)
From
L.P. Xin at NAOC <xlp@nao.cas.cn>
L. P. Xin,  P. P. Zhang, R. S. Zhang,  J. Wang,   J. Y. Wei,   E. W. Liang, 
X. G. Wang, Y. J. Xiao,   Y. G. Yang,  X. M. Lu,  L. Huang,    H. B. Cai,   
Y. L. Qiu,  Y. Xu, Y.  J. Xiao, Y. T. Zheng,  C. Wu,   J. S. Deng,  D. W. Xu, 
D. TURPIN, H. L. Li, and W. L. Dong, report:

We  observed  GRB 190106A  ( Sonbas et al., GCN 23615 )  
with  GWAC-F60B 60cm optical telescope  at 14:51:03 UT, 
Jan. 06th 2019,  about 77  min after the burst. 

The optical afterglow reported by ( Sonboas et al., GCN 23615; 
Lipunov et al., GCN 23636; Itoh et al., GCN23617; Mao et al., GCN 23618 )
is clearly detected  in R band images. The brightness is 17.8mag 
calibrated by nearby USNO-B1.0 stars.

GWAC-F60B is operated by Guangxi university and NAOC, CAS, 
at Xinglong observatory, China.

Further observation is continuing. 

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