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GCN Circular 15788

GRB 140206A: MASTER OT detection
2014-02-06T11:08:00Z (10 years ago)
Vladimir Lipunov at Moscow State U/Krylov Obs <>
V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov
Blagoveschensk Educational State University, Blagoveschensk

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

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

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

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: 
located in Blagoveschensk was pointed to the  GRB140206A (Lien et. al GCN 
15784 , Gotz et. al GCN 15784)  2h 16m (8153 s) after trigger time at 
2014-02-06 09:33:13 UT directly after sunset. On our first sets we found 
optical transient Oksanen et. al. GCN 15786.

The coordinate is:

RA= 09h 41m 20.21s
DEC= +66d 45m 37.7s
ERROR= 0.5 arcsec
Mag=18.5 +- 0.25m

Our unfiltered magnitude is calibrated by USNO
B1.0 catalog  by a parity 0.8R + 0.2B.

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