[vsnet-grb-info 1851] GRB 050727: RTT150 optical observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  3691
SUBJECT: GRB 050727: RTT150 optical observations
DATE:    05/07/27 22:02:23 GMT
FROM:    Rodion Burenin at IKI, Moscow  <rodion at hea.iki.rssi.ru>

R. Burenin, A. Tkachenko, M. Pavlinsky, R. Sunyaev (IKI), 
I. Khamitov, Z. Aslan (TUG), U. Kiziloglu (METU), A. Alpar (SabUni),
I. Bikmaev, N. Sakhibullin (KSU/AST)

report:

We observed the error box of GRB 050727 (Swift trigger No. 147918) with
Russian-Turkish 1.5-m telescope (RTT150, Bakyrlytepe, TUBITAK National
Observatory, Turkey). We made a set of 600s exposures in R, starting at
18:11 UT, July 27, i.e. about 11.7 hours after the burst.

We found no variable sources brighter than approximately R=22.5.

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