GCN Circular 9233
Subject
GRB 090424: MASTER-Net prompt optical observations
Date
2009-04-24T21:01:23Z (15 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@observ.inetcomm.ru>
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
K.Ivanov, S.Yazev
Irkutsk State University
A. Tlatov, A.V. Parhomenko,
Kislovodsk Solar Station of the Pulkovo Observatory
V.Krushinski, I.Zalognikh, T.Kopytova
Ural State University, Kourovka
There are 6 MASTER Very Wide Field cameras located at Kislovodsk and Irkutsk
with common FOW = 6000 square degrees (http://observ.pereplet.ru/).
One of the two MASTER Very Wide Field Cameras located at Irkutsk
(D=50 mm, 2x1000 square degrees, 11 Mpx, 72" per pix in binning regime)
has observed UVOT error box (Cannizzo et al., GCN 9223) with 1s exposure
befoure, during and after GRB Time without time gap between images.
The error box is near at the center of our FOW.
Our unfiltered images are calibrated relative to Tycho stars (V).
The magnitude limit of the each emage is ~8 m at the center of FOW (some
cloudy on the sky). The limit of coadded five images ~ 9 m.
The reduction is continued.
The message may be cited.
mailto: lipunov@sai.msu.ru