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GCN Circular 16972

GRB 141028A: MASTER OT candidate detection
2014-10-28T19:35:30Z (10 years ago)
Vladimir Lipunov at Moscow State U/Krylov Obs <>
E. Gorbovskoy,  V. Lipunov, N.Tyurina, M.Pruzhinskaya,  V.Kornilov, 
D.Kuvshinov,  P.Balanutsa, A.Kuznetsov, V.V.Chazov, D.Denisenko
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: located in 
Kislovodsk was pointed to the  GRB141028A (GCN 16969, Bissaldi) in  survey mode.

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) 
= 21h 30m 24.51s -00d 13m 52.3s on 2014-10-28.76451 UT.
The OT unfiltered magnitude is 18.9m (limit 19.9m).

The OT is seen in 12 images. There is no minor planet at this place.

We have reference image without OT on 2014-07-22.97505 UT with unfiltered 
magnitude limit 19.7m.

Spectral observations are required.

The discovery and reference images are available at:

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