TITLE:   GCN CIRCULAR
NUMBER:  7861
SUBJECT: GRB080607: RTT150 optical observations
DATE:    08/06/08 00:23:07 GMT
FROM:    Irek Khamitov at TUG  <irekk@tug.tug.tubitak.gov.tr>

R. Zhuchkov, I.Bikmaev, N. Sakhibullin (KSU/AST),
I. Khamitov, Z. Eker (TUG), U. Kiziloglu (METU),  E. Gogus (Sabanci Uni.)
R. Burenin, M. Pavlinsky, R. Sunyaev (IKI),

report:

We observed the field of optical afterglow (GCN7846) of GRB080607
(GCN 7847, SWIFT trigger=313417) with Russian-Turkish 1.5-m  telescope
(RTT150, Bakirlitepe, TUBITAK National Observatory, Turkey), starting
at 07 June, 18:35 UT, i.e. ~12.4 hours after the burst, using Andor CCD.

We made a set of 4*300s exposures in BRc bands. We detect nothing at the 
position of the OT (GCN7846, GCN7858) on co-added frames with limiting 
magnitudes B~22.2 and Rc~22.2

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