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GCN Circular 23690

GRB 190114C: MASTER afterglow Detection
2019-01-14T21:39:56Z (5 years ago)
Vladimir Lipunov at Moscow State U/Krylov Obs <>
N.Tyurina, V. Lipunov, A.Kuznetsov, E. Gorbovskoy, V.Kornilov, 
D.Kuvshinov, P.Balanutsa,D. Vlasenko
Lomonosov Moscow State University,
Sternberg Astronomical Institute, Moscow State University

V. Yurkov, A. Gabovich, Yu. Sergienko, D. Kobcev
Blagoveschensk Educational State University, Blagoveschensk

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

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

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

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

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

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

MASTER-IAC robotic telescope (Global MASTER-Net:, Lipunov et al., 2010, Advances in Astronomy, 
vol. 2010, 30L) located in Spain (IAC Teide Observatory) was pointed to 
the  GRB190114.87 25 sec after notice time and 47 sec after trigger time 
at 2019-01-14 20:57:51 UT. On our first (10s exposure)  set we  found 1 
optical transient within SWIFT error-box (ra=54.5042 dec=-26.9383 r=0.05) 
brighter than 16.54.

  T-Tmid      Date      Time       Expt.        Ra                Dec 
       52   2019-01-14 20:57:51      10   (  3h 38m 01.17s , -26d 56m 46.73s)    11.21

The 5-sigma upper limit has been about 16.54mag
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