[vsnet-grb-info 15569] GRB 140930B: MASTER early optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  16858
SUBJECT: GRB 140930B: MASTER early optical observations 
DATE:    14/09/30 20:01:31 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc at observ.inetcomm.ru>

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

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

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

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

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 Blagoveschensk was pointed to the  GRB140930B 21 sec after 
notice time and 39 sec after trigger time at 2014-09-30 19:42:21 UT in two 
polarizations. On our first (10s exposure)  set we haven`t found optical 
transient  within SWIFT error-box (ra=00 25 25 dec=+24 16 28 r=0.050000).
The 5-sigma upper limit has been about 16.0 mag


MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Kislovodsk was pointed to the  GRB140930B 36 sec after notice 
time and 54 sec after trigger time at 2014-09-30 19:42:36 UT  in two 
polarizations. On our first (10s exposure)  set we haven`t found optical 
transient  within SWIFT error-box (ra=00 25 25 dec=+24 16 27 r=0.050000).
The 5-sigma upper limit has been about 15.5 mag

The observations on both observatories is continued.