GCN Circular 23026
Subject
GRB 180722A: MASTER second inspection
Date
2018-07-24T10:16:15Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, N.Tiurina, D.Vlasenko, V.Kornilov, A.Kuznetsov,
V.Chazov, I. Gorbunov, D.Zimnukhov, D.Kuvshinov, P.Balanutsa,
V.Vladimirov,
Lomonosov Moscow State University,SAI
D. Buckley,
South African Astronomical Observatory (SAAO)
R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
The Instituto de Astrofisica de Canarias (IAC)
A. Tlatov, V.Senik, D. Dormidontov
Kislovodsk Solar Station of the Pulkovo Observatory
R. Podesta, F. Podesta, C. Lopez, C.Francile
Observatorio Astronomico Felix Aguilar (OAFA)
H.Levato,
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
O. Gres, N.M.Budnev , Yu.Ishmuhametova
Irkutsk State University (ISU)
A. Gabovich, V. Yurkov, Yu. Sergienko
Blagoveschensk Educational State University (BSPU)
MASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru)
located in SAAO was starting second survey on the MAXI GRB180722A
error-box
(ra=20 11 34 dec=+24 13 15 r=1) 61549 sec after notice time and 65839 sec
after trigger time at 2018-07-23 00:16:35 UT (Shimomukai et al.,
MAXI/GSC detection, GCN #23005; Lipunov et al., GCN #23006). The 5-sigma
upper limit on our first (180s exposure) set is about 19.0 mag
This error-box was observed by MASTER-Amur ( 2018-07-23
12:53:17-14:00:20UT, 60s, mlim=17.8) and another MASTER sites.
The coverage map of the 3 sigms error box is available at
http://master.sai.msu.ru/static/OT/MASTERMAXIGRB180722A.jpg
The observations made on zenit distance = 61 degrees, galaxy latitude b =
-6 degree.
The moon (80 % bright part) is 17 degrees above the horizon. The distance
between moon and object is 69
The sun altitude is -65.7 degree.
The object can be observed till 2018-07-23 03:41:44
The message may be cited.