[AAVSO-HEN] GRB080207: RTT150 Optical Observations

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
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TITLE:   GCN CIRCULAR
NUMBER:  7270
SUBJECT: GRB080207: RTT150 Optical Observations
DATE:    08/02/08 12:21:20 GMT
FROM:    Irek Khamitov at TUG  <irekk at tug.tug.tubitak.gov.tr>

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

report:

We have observed field of the GRB080207 (trigger=302728, GCN Circ. 7264) 
with Russian-Turkish 1.5-m telescope  (RTT150, Bakirlitepe, TUBITAK 
National Observatory, Turkey) 07 Feb between 22:04UT and 22:27UT, i.e. 
starting about 34 min after the burst, using ANDOR CCD.

Series of 20*30sec direct images in Rc band were taken. We found no 
afterglow candidate inside of XRT error circle. Using USNO-B1 stars we 
estimated limiting magnitude of the co-added frame as R~21.8 mag.

The finding chart can be found at:
http://hea.iki.rssi.ru/grb/080207/indexeng.html


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