TITLE:   GCN CIRCULAR
NUMBER:  11588
SUBJECT: GRB 110120A: MASTER  optical observations 
DATE:    11/01/20 18:04:51 GMT
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,
D.Zimnukhov, M. Kornilov, V.Shumkov, S.Shurpakov
Sternberg Astronomical Institute, Moscow State University

V.Krushinski, I.Zalozhnich, A. Popov
Ural State University, Kourovka

K.Ivanov, O.Chuvalaev, V.Poleschuk, E.Konstantinov, V.Lenok, O.Gres,
S.Yazev, N.M.Budnev,
Irkutsk State University

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

V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina
Blagoveschensk Educational State University, Blagoveschensk

MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Kislovodsk was pointed to the  GRB110120.67 24 sec s after 
notice time and 63 sec after GRB time at 2011-01-20 16:00:42.913 UT. On 
our first (10s exposure) set we haven`t found optical transient  within 
FERMI LAT error-box (ra=04 22 36 dec=-18 21 00 r=0.016667).
The 5-sigma upper limit has been about 13 mag.


  The message generated automaticaly.

*Add: The observations was done at high zenith distance.

mailto: lipunov@sai.msu.ru