GCN Circular 23027
Subject
GRB 180723.13: MASTER optical observation of the short Fermi GBM trigger number 554008254
Date
2018-07-24T10:31:46Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V.Lipunov, E. Gorbovskoy, N.Tiurina, V.Kornilov, A.Kuznetsov,
V.Chazov, I. Gorbunov, D.Zimnukhov, D.Kuvshinov, P.Balanutsa,
V.Vladimirov, D.Vlasenko,
Lomonosov Moscow State University,SAI
D.Svinkin
Ioffe Institute, StPetersburg
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-OAFA robotic telescope (MASTER-Net: http://observ.pereplet.ru,
Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in
Argentina (OAFA observatory of San Juan National University) was pointed
to the GRB180723.13 45 sec after notice time and 90 sec after trigger
time at 2018-07-23 03:12:19 UT. On our first (20s exposure) set we
not found optical transient within FERMI error-box (ra=136.058 dec=-64.17
r=4.29) brighter then 15.8.
The coverage map of the 3 sigms + sigma error box is available at
http://master.sai.msu.ru/static/OT/MASTERmapFermi554008254.jpg
The observations made on zenit distance = 80 degrees, galaxy latitude b =
-11 degree.
The moon (81 % bright part) is 58 degrees above the horizon. The distance
between moon and object is 83
The sun altitude is -66.7 degree.
The object can be observed till sunrise at 2018-07-23 11:31:04 UT.
MASTER-OAFA robotic telescope was pointed for second inspection
to the GRB180723.13 1 days 20938 sec after notice time and 1 days 20938
sec after trigger time at 2018-07-24 08:59:48 UT. We not found OT brighter
then 18.1.
The message may be cited.