[vsnet-grb-info 13308] GRB130514B: MASTER-Net optical observations.

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  14644
SUBJECT: GRB130514B: MASTER-Net optical observations.
DATE:    13/05/14 18:37:30 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc at observ.inetcomm.ru>

K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk
Irkutsk State University

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

V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov
Blagoveschensk Educational State University, Blagoveschensk

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

V.Krushinski, I.Zalozhnih,  A. Popov
Ural Federal University, Kourovka

Hugo Levato and Carlos Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)

Claudio Mallamaci, Carlos Lopez and Federico Podest
Observatorio Astronomico Felix Aguilar (OAFA)


MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Tunka was pointed to the  GRB130514B  90 sec  after GRB time 
but out first image were overlight by evening sky.
The first good image made 3812 sec after GRB time at 2013-05-14 14:30:06.562 UT. 
On our  first (180s exposure) good  set we haven`t found optical transient 
within INTEGRAL error-box (S.Mereghetti et. al GCN 14638).
The 5-sigma upper limit has been about 16.5 mag
The observations mae on large zenith distance z=83 deg. 
The message may be cited.