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GCN Circular 11986

Subject
GRB 110422A: optical observations in CrAO
Date
2011-05-01T10:22:01Z (13 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
V. Rumyantsev (CrAO), A. Pozanenko (IKI), E. Klunko (ISTP) report on behalf 
of  larger GRB  follow-up collaboration:

We observed  the field of the Swift GRB 110422A (Mangano  et al., GCN 11957) 
with ZTSh telescope of CrAO on Apr. 28 between  (UT) 20:43: and  21:52. We 
clearly detect the afterglow (Klunko et al. GCN 11958, Gres et al. GCN 
11960, Xu et al. GCN 11961). The photometry is based on the USNO B1.0 star 
1651-0050626   (07 28 13.15 +75 06 51.5) assuming R=18.56 :

T0+      Filter,   Exposure, mag.
(mid, d)              (s)

6.2328  R        55x60       22.28  +/-0.14
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