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GCN Circular 12275

Subject
GRB 110801A: optical observations at Mt. Terskol observatory
Date
2011-08-13T13:40:30Z (13 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
M. Andreev, N. Parakhin, A. Sergeev (Terskol Branch of Institute of
Astronomy), A. Pozanenko (IKI) on behalf of larger GRB follow up
collaboration report:

We observed field of the Swift  GRB 110801A (Pasquale  et al. GCN 12228)
with Zeiss-600 telescope of Mt.Terskol observatory in R filter starting on
Aug. 02 (UT) 00:25.  In a stacked image we clearly detect optical afterglow
(Pasquale  et al. GCN 12228, Zheng et al. GCN 12229). A  photometry is based
on the USNO B1.0 star 1709-0023450 (05 57 24.91 +80 57 39.8) assuming
R=15.73.

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

0.1951   R         4x180       18.35 +/- 0.10
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