GCN Circular 23490
Subject
GRB 181202A: Global MASTER-Net optical observations
Date
2018-12-03T01:24:30Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, P.Balanutsa,
A.Kuznetsov, V.V.Chazov, D. Vlasenko
Lomonosov Moscow State University,
Sternberg Astronomical Institute, Moscow State University
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
V. Yurkov, A. Gabovich, Yu. Sergienko
Blagoveschensk Educational State University, Blagoveschensk
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-Tunka robotic telescope (MASTER-Net: http://observ.pereplet.ru,
Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in
Russia (Applied Physics Institute, Irkutsk State University) was pointed
to the Swift GRB 181202A (Cannizzo et al., GCN #23482) 13216 sec after
trigger time at 2018-12-02 10:17:08. On best sum (1800s total
exposure) set
we haven`t found optical transient within Swift error-box (ra=280.733
dec=27.9592 r=0.05).
The 5-sigma upper limit has been about 19.0 mag
====================================================================
The galactic latitude b = 14 deg., longitude l = 58 deg.
The observations made on zenit distance = 42 deg.The moon (25 % bright
part) below the horizon (The altitude of the Moon is -26 deg. ).
Observations started at twilight.
The sun altitude is -10.6 deg.
The object can be observed till sunrise at 2018-12-02 00:56:06
MASTER-Kislovodsk robotic telescope located in Russia (Lomonosov MSU,
Kislovodsk Solar Station of Pulkovo observatory) was pointed to the SWIFT
GRB181202.28 32902 sec after trigger time at 2018-12-02 15:46:09 UT, with
upper limit up to 20.2 mag. No OT detected.
The observations began at zenit distance = 57
deg. The sun altitude is -23.0 deg.
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