GCN Circular 23532
Subject
GRB 181213A: GWAC-F60A upper limit
Date
2018-12-14T01:48:15Z (6 years ago)
From
L.P. Xin at NAOC <xlp@nao.cas.cn>
X. H. Han, R. S. Zhang, L. P. Xin, J. Wang, P. P. Zhang, J. Y. Wei, E. W. Liang,
X. G. Wang, Y. J. Xiao, Y. G. Yang, X. M. Lu, L. Huang, H. B. Cai,
X. M. Meng, 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 181213A ( Evans et al., GCN 23525; Osborne
et al., GCN 23528 ) with GWAC-F60A 60cm optical telescope
at 21:21:34 UT, Dec. 13th 2018, about 8.4 hours after the burst.
The exposure time is 150 sec in R band. the airmass is 1.56.
The optical afterglow reported by (Lipunov et al., GCN 23526; Hu et al. GCN 23527;
Siegel et al., GCN 23529; Belkin et al., GCN 23530) is not detected with an upper
limit of 18.2 mag in R band image. The brightness is calibrated by nearby USNO-B1.0 stars.
GWAC-F60A is operated by Guangxi university and NAOC, CAS,
at Xinglong observatory, China.
The message may be cited.