GCN Circular 25083
Subject
Swift GRB190718.2 Global MASTER-Net observations report
Date
2019-07-18T05:28:22Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin,
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov
(Lomonosov Moscow State University, SAI, Physics Department),
R. Podesta, C.Lopez, F. Podesta, C.Francile
(Observatorio Astronomico Felix Aguilar OAFA),
H.Levato
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),
R. Rebolo, M. Serra
(The Instituto de Astrofisica de Canarias)
D. Buckley
(South African Astronomical Observatory),
O.A. Gres, N.M. Budnev, O.Ershova
(Irkutsk State University, API),
A. Tlatov, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory),
V. Yurkov, A. Gabovich, Yu. Sergienko
(Blagoveschensk Educational State University)
MASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) was pointed to the Swift GRB190718.2 (trigger No 915091, 22h 26m 07.44s , -41d 13m 15.60s, R=0.05) errorbox 18 sec after notice time and 44 sec after trigger time at 2019-07-18 04:41:59 UT, with upper limit up to 17.0 mag. Observations started at twilight. The observations began at zenit distance = 40 deg. The sun altitude is -11.6 deg.
MASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan National University) was pointed to the Swift GRB190718.2 errorbox 32 sec after notice time and 57 sec after trigger time at 2019-07-18 04:42:12 UT, with upper limit up to 17.1 mag. The observations began at zenit distance = 33 deg. The sun altitude is -80.1 deg.
MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) was pointed to the Swift GRB190718.2 errorbox 55 sec after notice time and 80 sec after trigger time at 2019-07-18 04:42:35 UT, with upper limit up to 16.8 mag. The observations began at zenit distance = 71 deg. The sun altitude is -18.8 deg.
The galactic latitude b = -60 deg., longitude l = 98 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=1077929
We obtain a following upper limits.
Tmid-T0 | Site |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________
49 | MASTER-SAAO | P\ | 10 | 15.7 |
64 | MASTER-SAAO | P\ | 40 | 16.5 | Coadd
63 | MASTER-OAFA | C | 10 | 15.4 |
88 | MASTER-OAFA | C | 60 | 16.4 | Coadd
75 | MASTER-SAAO | P\ | 10 | 15.7 |
86 | MASTER-IAC | P| | 10 | 16.2 |
105 | MASTER-SAAO | P\ | 20 | 16.1 |
120 | MASTER-OAFA | C | 20 | 15.7 |
139 | MASTER-IAC | P| | 20 | 16.8 |
147 | MASTER-SAAO | P\ | 30 | 16.3 |
192 | MASTER-SAAO | P\ | 120 | 16.9 | Coadd
186 | MASTER-OAFA | C | 30 | 15.8 |
196 | MASTER-SAAO | P\ | 40 | 16.3 |
268 | MASTER-SAAO | P\ | 50 | 16.3 |
271 | MASTER-OAFA | C | 50 | 16.1 |
339 | MASTER-SAAO | P\ | 60 | 16.3 |
429 | MASTER-SAAO | P\ | 240 | 17.0 | Coadd
374 | MASTER-OAFA | C | 70 | 16.2 |
430 | MASTER-SAAO | P\ | 80 | 16.3 |
497 | MASTER-OAFA | C | 90 | 16.3 |
536 | MASTER-SAAO | P\ | 100 | 16.3 |
643 | MASTER-OAFA | C | 120 | 16.5 |
808 | MASTER-OAFA | C | 450 | 17.1 | Coadd
664 | MASTER-SAAO | P\ | 120 | 16.2 |
815 | MASTER-SAAO | P\ | 150 | 15.9 |
821 | MASTER-OAFA | C | 150 | 16.5 |
1027 | MASTER-OAFA | C | 180 | 16.6 |
1247 | MASTER-OAFA | C | 180 | 16.5 |
1468 | MASTER-OAFA | C | 180 | 16.5 |
1691 | MASTER-OAFA | C | 180 | 16.5 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.