GCN Circular 33873
Subject
IceCube Alert 230524.47: Global MASTER-Net observations report
Date
2023-05-25T07:13:25Z (a year ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,
G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin
(Lomonosov Moscow State University, SAI, Physics Department),
R. Podesta, C.Lopez, F. Podesta, C.Francile
(Observatorio Astronomico Felix Aguilar OAFA),
R. Rebolo, M. Serra
(The Instituto de Astrofisica de Canarias),
D. Buckley
(South African Astronomical Observatory),
O.A. Gres, N.M. Budnev
(Irkutsk State University, API),
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez
(INAOE, Guillermo Haro Astrophysics Observatory),
A. Tlatov, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich, V.Yurkov
(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) started inspect of the IceCube Alert 230524.47 (trigger No 11526243,21h 16m 02.16s , +02d 57m 32.4s, R=1.12) errorbox 46133 sec after notice time and 46181 sec after trigger time at 2023-05-24 23:59:17 UT, with upper limit up to 20.1 mag. The observations began at zenith distance = 62 deg. The sun altitude is -68.2 deg.
The galactic latitude b = -30 deg., longitude l = 55 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2219004
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
46271 | 2023-05-24 23:59:17 | MASTER-SAAO | (21h 05m 12.01s , +02d 17m 31.9s) | C | 180 | 19.0 |
46451 | 2023-05-24 23:59:17 | MASTER-SAAO | (21h 05m 12.01s , +02d 17m 31.9s) | C | 540 | 20.0 | Coadd
46271 | 2023-05-24 23:59:17 | MASTER-SAAO | (21h 04m 24.13s , +02d 17m 57.8s) | C | 180 | 19.1 |
46451 | 2023-05-24 23:59:17 | MASTER-SAAO | (21h 04m 24.13s , +02d 17m 57.8s) | C | 540 | 20.0 | Coadd
46492 | 2023-05-25 00:02:57 | MASTER-SAAO | (21h 05m 09.15s , +02d 18m 40.8s) | C | 180 | 19.6 |
46492 | 2023-05-25 00:02:57 | MASTER-SAAO | (21h 04m 21.21s , +02d 19m 04.9s) | C | 180 | 19.5 |
46697 | 2023-05-25 00:06:23 | MASTER-SAAO | (21h 05m 09.15s , +02d 17m 39.5s) | C | 180 | 19.5 |
46697 | 2023-05-25 00:06:23 | MASTER-SAAO | (21h 04m 21.15s , +02d 18m 03.5s) | C | 180 | 19.3 |
46909 | 2023-05-25 00:09:54 | MASTER-SAAO | (21h 16m 06.41s , +04d 49m 49.5s) | C | 180 | 19.5 |
47089 | 2023-05-25 00:09:54 | MASTER-SAAO | (21h 16m 06.43s , +04d 49m 49.4s) | C | 540 | 20.1 | Coadd
46909 | 2023-05-25 00:09:54 | MASTER-SAAO | (21h 15m 18.55s , +04d 50m 16.3s) | C | 180 | 19.4 |
47089 | 2023-05-25 00:09:54 | MASTER-SAAO | (21h 15m 18.57s , +04d 50m 16.3s) | C | 540 | 19.9 | Coadd
47119 | 2023-05-25 00:13:25 | MASTER-SAAO | (21h 15m 58.74s , +04d 49m 13.0s) | C | 180 | 19.5 |
47119 | 2023-05-25 00:13:25 | MASTER-SAAO | (21h 15m 10.93s , +04d 49m 38.4s) | C | 180 | 19.4 |
47330 | 2023-05-25 00:16:56 | MASTER-SAAO | (21h 15m 59.23s , +04d 50m 11.0s) | C | 180 | 19.2 |
47330 | 2023-05-25 00:16:56 | MASTER-SAAO | (21h 15m 11.27s , +04d 50m 37.0s) | C | 180 | 19.0 |
47542 | 2023-05-25 00:20:27 | MASTER-SAAO | (21h 16m 59.92s , -00d 00m 32.3s) | C | 180 | 19.5 |
47722 | 2023-05-25 00:20:27 | MASTER-SAAO | (21h 16m 59.93s , -00d 00m 32.3s) | C | 540 | 20.1 | Coadd
47542 | 2023-05-25 00:20:27 | MASTER-SAAO | (21h 16m 11.91s , -00d 00m 06.3s) | C | 180 | 19.4 |
47722 | 2023-05-25 00:20:27 | MASTER-SAAO | (21h 16m 11.92s , -00d 00m 06.3s) | C | 540 | 20.0 | Coadd
47753 | 2023-05-25 00:23:59 | MASTER-SAAO | (21h 16m 06.06s , -00d 01m 06.7s) | C | 180 | 19.4 |
47753 | 2023-05-25 00:23:59 | MASTER-SAAO | (21h 16m 54.07s , -00d 01m 33.0s) | C | 180 | 19.5 |
47965 | 2023-05-25 00:27:31 | MASTER-SAAO | (21h 17m 00.90s , -00d 01m 26.3s) | C | 180 | 19.4 |
47965 | 2023-05-25 00:27:31 | MASTER-SAAO | (21h 16m 12.82s , -00d 00m 59.8s) | C | 180 | 19.2 |
48816 | 2023-05-25 00:41:42 | MASTER-SAAO | (21h 24m 08.69s , +04d 27m 32.1s) | C | 180 | 19.2 |
48996 | 2023-05-25 00:41:42 | MASTER-SAAO | (21h 24m 08.67s , +04d 27m 32.1s) | C | 540 | 20.0 | Coadd
48816 | 2023-05-25 00:41:42 | MASTER-SAAO | (21h 23m 20.63s , +04d 28m 00.9s) | C | 180 | 19.2 |
48996 | 2023-05-25 00:41:42 | MASTER-SAAO | (21h 23m 20.62s , +04d 28m 00.9s) | C | 540 | 19.9 | Coadd
49029 | 2023-05-25 00:45:15 | MASTER-SAAO | (21h 24m 08.32s , +04d 28m 32.4s) | C | 180 | 19.3 |
49029 | 2023-05-25 00:45:15 | MASTER-SAAO | (21h 23m 20.18s , +04d 29m 01.1s) | C | 180 | 19.2 |
49241 | 2023-05-25 00:48:47 | MASTER-SAAO | (21h 24m 14.10s , +04d 27m 32.3s) | C | 180 | 19.1 |
49241 | 2023-05-25 00:48:47 | MASTER-SAAO | (21h 23m 25.87s , +04d 28m 01.6s) | C | 180 | 19.1 |
49451 | 2023-05-25 00:52:17 | MASTER-SAAO | (21h 22m 22.89s , +05d 20m 21.5s) | C | 180 | 19.4 |
49631 | 2023-05-25 00:52:17 | MASTER-SAAO | (21h 22m 22.90s , +05d 20m 21.5s) | C | 540 | 20.1 | Coadd
49451 | 2023-05-25 00:52:17 | MASTER-SAAO | (21h 21m 34.55s , +05d 20m 51.0s) | C | 180 | 19.3 |
49631 | 2023-05-25 00:52:17 | MASTER-SAAO | (21h 21m 34.56s , +05d 20m 51.0s) | C | 540 | 20.0 | Coadd
49662 | 2023-05-25 00:55:48 | MASTER-SAAO | (21h 22m 30.22s , +05d 20m 46.5s) | C | 180 | 19.1 |
49662 | 2023-05-25 00:55:48 | MASTER-SAAO | (21h 21m 41.79s , +05d 21m 15.9s) | C | 180 | 19.0 |
49875 | 2023-05-25 00:59:21 | MASTER-SAAO | (21h 22m 26.62s , +05d 22m 15.4s) | C | 180 | 19.4 |
49875 | 2023-05-25 00:59:21 | MASTER-SAAO | (21h 21m 38.15s , +05d 22m 45.3s) | C | 180 | 19.3 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.