[vsnet-grb-info 7553] GRB 090408B: MASTER II-Kourovka optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  9111
SUBJECT: GRB 090408B: MASTER II-Kourovka optical observations 
DATE:    09/04/08 18:33:14 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc at observ.inetcomm.ru>

V.Krushinski, I.Zalognikh, T.Kopytova
Ural State University, Kourovka

E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina,
D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov
Sternberg Astronomical Institute, Moscow State University

A. Tlatov, A.V. Parhomenko,
   Kislovodsk Solar Station of the Pulkovo Observatory


K.Ivanov, S.Yazev, Irkutsk State University


The MASTER II Wide Field Telescope located at Kourovka Observatory (Ural)
(two telescopes with D=400 mm, FOW = 2x4 square degrees, 2x16 Mpx CCD on 
one NTM mount) has observed  Swift error box  (Stroh et al., GCN 9110)
with 60s exposure started at 1h 27m after Trigger time 
(after sun set) simultaneously in two filters R and V.
MASTER-II is the new site of the MASTER-Net (http://observ.pereplet.ru/).
Actually, we observed from the city.

Our  images are calibrated relative to USNO B (R) & Tycho stars (V).
The wether is not very good.

We do not detect OT inside error box brighter ~17m (S/N=6).

The reduction is continued.

The message may be cited.

mailto: lipunov at sai.msu.ru