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GCN Circular 11201

GRB 100901A: optical observation at Mt.Terskol
2010-09-04T01:15:38Z (14 years ago)
Alexei Pozanenko at IKI, Moscow <>
M. Andreev, A. Sergeev (Terskol Branch of Institute of Astronomy) and
A.Pozanenko (IKI) on behalf of larger GRB follow up collaboration report:

We are continuing observations of the Swift GRB 100901A (Immler  et al., GCN
11159) with the Z-600 telescope of Mt.Terskol observatory in R-filter. In
combined images we still detect  afterglow (Immler et al., GCN 11159). The
photometry is based  on several  reference stars of SDSS DR7 and Lupton
transformation griz -> R used in our previous reports (GCNs 11191, 11200):

T0+     Filter, Exposure,   OT
(d)                 (s)

2.4073  R     15x120        20.13  +/-0.12
2.4282  R     15x120        20.28  +/-0.16
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