[vsnet-grb-info 3813] GRB060927: optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  5647
SUBJECT: GRB060927: optical observations
DATE:    06/09/28 16:06:09 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

K. Antoniuk, V. Rumyantsev (CrAO), A. Pozanenko (IKI) on behalf of larger
GRB follow up collaboration report:

We observed the error box of GRB060927 (Barbier et al., GCN 5627) with
AZT-11 (1.25m) telescope of CrAO observatory between Sep. 27 (UT) 17:38:49
and 18:21:35. The OT (Schaefer et al., GCN5629) is clearly detected in a
combined image. A preliminary photometry against USNOA2.0 star (RA 21 58
12.96  Dec +05 22 31.40  18.60R) is following:

Mid time (UT), Exposure, R_mag

Sep. 27.750    15x180 s   21.4 +/- 0.3

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