GCN Circular 29563
Subject
GRB 210222B: Zeiss-1000 of Koshka observatory, optical observations
Date
2021-02-24T11:08:10Z (4 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), A. Pozanenko (IKI), A. Novichonok (Petrozavodsk State
University, KIAM), A. Zhornichenko (KIAM), N. Pankov (HSE) report on
behalf of IKI GRB FuN:
We observed the field of GRB 210222B (Gropp et al., GCN 29545) with
Zeiss-1000 telescope of Koshka observatory starting on Feb. 22 (UT)
22:46:13, i.e. about 12.8 minutes after GRB trigger. We clearly detect
optical afterglow (Gropp et al., GCN 29545; Hu et al., GCN 29546;
Strausbaugh et al., GCN 29547; Mong et al., GCNs 29548, 29550; Perley et
al., GCN 29549; Zhu et al., GCN 29551; Lipunov et al., GCN 29554;
Jelinek et al., GCN 29557