[vsnet-grb-info 18561] GRB 161007A: MASTER-net early optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  20009
SUBJECT: GRB 161007A: MASTER-net early optical observations 
DATE:    16/10/07 21:45:10 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.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, N.Tyurina, N.Shatskiy, 
P.Balanutsa, A.Kuznetsov, V.V.Chazov
Lomonosov Moscow State University,
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.Senik
Kislovodsk Solar Station of the Pulkovo Observatory

V.Krushinsky, I.Zalozhnih,  A. Popov
Ural Federal University, Yekaterinburg, Kourovka


R.Podesta, C.Lopez, F. Podesta
Observatorio Astronomico Felix Aguilar (OAFA)

H. Levato, C. Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)

D.Buckley, S. Potter, A.Kniazev, M.Kotze
South African Astronomical Observatory

R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
The Instituto de Astrofisica de Canarias

MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Tunka was pointed to the  GRB161007A 38 sec after notice time 
and 114 sec after trigger time at 2016-10-07 21:27:42 UT in two 
polarizations. On our first (20s exposure)  set we haven`t found optical 
transient  within SWIFT error-box (ra=06 53 33 dec=+23 17 20 r=0.050000).
The 5-sigma upper limit has been about 17.0 mag.
The observations made on zenit distance = 33 degrees, galaxy latitude b = 
11 degree. The moon (38 % bright part) below the horizon (The altitude of 
the Moon is -56 degree ).



MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Kislovodsk was pointed to the  GRB161007A 33 sec after notice 
time and 109 sec after trigger time at 2016-10-07 21:27:36 UT in two 
polarizations.. On our first (20s exposure)  set we haven`t found optical 
transient  within SWIFT error-box.
The 5-sigma upper limit has been about 17.0 mag.
The observations made on zenit distance = 68 degrees, galaxy latitude b = 
11 degree. The moon (38 % bright part) below the horizon (The altitude of 
the Moon is -28 degree ).


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