GCN Circular 12475
Subject
GRB 111022B: MASTER-Net early limit
Event
Date
2011-10-22T18:07:27Z (14 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>
E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, D.Kuvshinov, 
N.Tyurina,  N.Shatskiy, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov,
D.Zimnukhov, M. Kornilov, A.Sankovich
Sternberg Astronomical Institute, Moscow State University
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V. Senik
Kislovodsk Solar Station of the Pulkovo Observatory
K.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok, O.Gres, 
O.Chuvalaev, V.A.Poleshchuk
Irkutsk State University
V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina, E.Sinyakov
Blagoveschensk Educational State University, Blagoveschensk
V.Krushinski, I.Zalozhnich, T.Kopytova, A. Popov
Ural State University, Kourovka
MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Kislovodsk was pointed to the  GRB111022B 22 sec after 
notice time and 583 sec after GRB time at 2011-10-22 17:22:48 UT in two 
polarization bands. On our first (120s exposure) set we haven`t found 
optical transient  within SWIFT error-box.
The 5-sigma upper limit has been about 17.0 mag
MASTER II  robotic telescope located in Tunka(Siberia) was pointed to
GRB111022B 183 sec  after notice time and 748 sec after GRB time at
2011-10-22 17:25:32 UT in two polarization bands. On 
our first (150s exposure) set we haven`t found optical transient  within 
SWIFT error-box. So long time of pointing in this site is caused by a 
mount problem.
The 5-sigma upper limit has been about 18.3 mag
The message may be cited.