[vsnet-grb-info 3413] GRB 060607: RTT150 optical observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  5248
SUBJECT: GRB 060607: RTT150 optical observations
DATE:    06/06/09 12:50:33 GMT
FROM:    Irek Khamitov at TUG  <irekk at tug.tug.tubitak.gov.tr>

I. Khamitov (TUG), A.T. Saygac (Ist.Uni), Z. Aslan (TUG),
U. Kiziloglu (METU), E. Gogus (Sabanci Uni.)
R. Burenin, M. Pavlinsky (IKI)
I. Bikmaev, N. Sakhibullin (KSU/AST),

report:

We observed the field around the position of the optical/IR counterpart
(Covino et al., GCN5234, Oates et al., GCN5243) of GRB060607 (Swift 
trigger 213823) with the Russian-Turkish 1.5-m telescope (RTT150, 
Bakirlitepe, TUBITAK National Observatory, Turkey), at the beginning
of June 08, about 19.77 hours after the burst. A series of frames was 
taken in R band with TFOSC. The afterglow is not detected on combined 
image with 1500s total exposure.

http://www.tug.tubitak.gov.tr/~irekk/grb/grb060607/GRB060607_0608_RTT150.JPG

Using USNO-B1 star we estimate the limiting R magnitude
for the combined frame as R_lim~22.6

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