GCN Circular 6801
Subject
GRB070917: optical observations
Event
Date
2007-09-19T18:25:37Z (18 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
K. Antonyuk, V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the error box of GRB070917 (Cummings et al., GCN 6743) with
AZT-11 telescope of CrAO on Sep. 17. Series of images were obtained between
(UT) 2007-09-17 18:58:08 and 19:25:37 in R filter. In a combined image of
6x300 s within the XRT error circle (Evans et al., GCN 6796) we do not
detect any new sources in comparison with DSS2 up to the limiting magnitude
(3 sigma) R=21.1. Photometry calibration is performed against USNO-A2.0. The
combined image can be found in
http://grb.rssi.ru/GRB070917/GRB070917_AZT-11.gif.
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