GCN Circular 31232
Subject
GRB 211211A: GMG upper limit
Event
Date
2021-12-15T02:00:51Z (5 years ago)
From
Jirong Mao at Yunnan Obs <jirongmao_obs@ynao.ac.cn>
J. Mao, Y.-X. Xin, and J.-M. Bai (YNAO) report:
We observed the field of GRB 211211A (D'Ai et al. GCN 31202) by the GMG telescope in Yunnan observatories.
The observation began from UT 22:41:02 Dec 12, 2021, about 33.5 hours from the trigger. We could not observe
the optical afterglow down to a magnitude limit of r~22.0.