GCN Circular 23258
Subject
GRB 180923A: MASTER inspection MAXI/GSC error box
Date
2018-09-23T08:38:06Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, D. Vlasenko, N.Tiurina,
V.Kornilov, A.Kuznetsov, V.Chazov, I. Gorbunov,
D.Zimnukhov, D.Kuvshinov, P.Balanutsa, V.Vladimirov,
Lomonosov Moscow State University,SAI
A. Tlatov, V.Senik, D. Dormidontov
Kislovodsk Solar Station of the Pulkovo Observatory
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)
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 starting
survey on the MAXI GRB180923.17 error-box (ra=02 33 12 dec=+06 18 02 r=1)
2777 sec after notice time and 7954 sec after trigger time at 2018-09-23
06:21:04 UT. The 5-sigma upper limit on our first (60s exposure) set is
about 17.9 mag
No OT detected.
The galacitc latitude b = 0 deg.
The observations made on zenit distance = 39 deg.The moon (97 % bright
part) is 42 deg. above the horizon. The distance between moon and object
is 59
The sun altitude is -48.6 deg.
The object can be observed till sunrise at 2018-09-23 10:25:33
.
The cover map is availavle at
http://observ.pereplet.ru/images/GRB180923A_cover_map.png
Only for MASTER-team:
The OT candidate available here
https://200.123.254.238:49004//master2/trans.php?wh=transients.coord2000@%27%3C%2838.3d%2C6.30056d%29%2C2d%3E%27%3A%3Ascircle+and+transients.datetime%3E%3D%272018-09-23+04%3A08%3A30%27&class=9&t2=MAXI+GRB180923.17+optical+counterpart+candidate
The full information about this GRB180923.17 available here
https://200.123.254.238:49004//master2/grb.php?not=2018-09-23+05%3A34%3A46.484065&sat=MAXI&gcrd=%2838.3d%2C6.30056d%29&eb=1&trig=2018-09-23+04%3A08%3A30&n=GRB180923.17
The message may be cited.