GCN Circular 46232
Subject
EP Alert 261112.01: Global MASTER-Net observations report
Date
2026-11-12T01:09:42Z (11 hours ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
email
D.Buckley (SAAO),
V.Lipunov, E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko,
G.Antipov, A.Sankovich, Yu.Tselik, Ya..Kechin, V.Senik, A.Chasovnikov, K.Labsina (Lomonosov MSU)
A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity)
A.Sosnovskij (Lomonosov MSU)
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory)
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,
A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory)
R.Rebolo (The Instituto de Astrofisica de Canarias)
O.Gress, N.Budnev(ISU)
M. Segura, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA)
MASTER-SAAO robotic telescope [1] located in South Africa (South African Astronomical Observatory) was pointed to the EP Alert 261112.01 (trigger No 1709322452,04h 41m 25.20s , +14d 05m 06.0s, R=0.0515852) errorbox 23 sec after notice time and 397 sec after trigger time at 2026-11-12 00:24:15 UT, with upper limit up to 19.0 mag. The observations began at zenith distance = 47 deg. The sun altitude is -31.8 deg.
The galactic latitude b = -20 deg., longitude l = 184 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=3532565
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
428 | 2026-11-12 00:24:15 | MASTER-SAAO | (04h 37m 42.05s , +14d 05m 07.5s) | P/ | 60 | 18.2 |
488 | 2026-11-12 00:24:15 | MASTER-SAAO | (04h 37m 41.93s , +14d 05m 08.2s) | P/ | 180 | 19.0 | Coadd
428 | 2026-11-12 00:24:15 | MASTER-SAAO | (04h 39m 32.09s , +13d 49m 02.7s) | P\ | 60 | 18.1 |
488 | 2026-11-12 00:24:15 | MASTER-SAAO | (04h 39m 32.09s , +13d 49m 02.5s) | P\ | 180 | 18.9 | Coadd
506 | 2026-11-12 00:25:33 | MASTER-SAAO | (04h 37m 42.07s , +14d 05m 11.1s) | P/ | 60 | 18.2 |
506 | 2026-11-12 00:25:33 | MASTER-SAAO | (04h 39m 32.24s , +13d 49m 04.6s) | P\ | 60 | 18.1 |
585 | 2026-11-12 00:26:53 | MASTER-SAAO | (04h 37m 42.23s , +14d 05m 14.2s) | P/ | 60 | 18.1 |
585 | 2026-11-12 00:26:53 | MASTER-SAAO | (04h 39m 32.38s , +13d 49m 06.6s) | P\ | 60 | 18.1 |
665 | 2026-11-12 00:28:12 | MASTER-SAAO | (04h 37m 42.38s , +14d 05m 16.8s) | P/ | 60 | 18.3 |
725 | 2026-11-12 00:28:12 | MASTER-SAAO | (04h 37m 42.39s , +14d 05m 16.9s) | P/ | 180 | 18.8 | Coadd
665 | 2026-11-12 00:28:12 | MASTER-SAAO | (04h 39m 32.53s , +13d 49m 08.2s) | P\ | 60 | 18.1 |
725 | 2026-11-12 00:28:12 | MASTER-SAAO | (04h 39m 32.58s , +13d 49m 09.5s) | P\ | 180 | 18.6 | Coadd
744 | 2026-11-12 00:29:31 | MASTER-SAAO | (04h 37m 42.53s , +14d 05m 19.6s) | P/ | 60 | 18.1 |
744 | 2026-11-12 00:29:31 | MASTER-SAAO | (04h 39m 32.58s , +13d 49m 10.7s) | P\ | 60 | 18.0 |
823 | 2026-11-12 00:30:50 | MASTER-SAAO | (04h 37m 42.74s , +14d 05m 23.4s) | P/ | 60 | 18.1 |
823 | 2026-11-12 00:30:50 | MASTER-SAAO | (04h 39m 32.62s , +13d 49m 12.9s) | P\ | 60 | 18.1 |
902 | 2026-11-12 00:32:09 | MASTER-SAAO | (04h 37m 42.90s , +14d 05m 25.0s) | P/ | 60 | 18.2 |
962 | 2026-11-12 00:32:09 | MASTER-SAAO | (04h 37m 42.90s , +14d 05m 25.0s) | P/ | 180 | 18.9 | Coadd
902 | 2026-11-12 00:32:09 | MASTER-SAAO | (04h 39m 32.81s , +13d 49m 15.0s) | P\ | 60 | 18.1 |
962 | 2026-11-12 00:32:09 | MASTER-SAAO | (04h 39m 32.74s , +13d 49m 15.4s) | P\ | 180 | 18.8 | Coadd
981 | 2026-11-12 00:33:28 | MASTER-SAAO | (04h 37m 43.13s , +14d 05m 27.5s) | P/ | 60 | 18.1 |
981 | 2026-11-12 00:33:28 | MASTER-SAAO | (04h 39m 32.88s , +13d 49m 17.7s) | P\ | 60 | 18.1 |
1060 | 2026-11-12 00:34:47 | MASTER-SAAO | (04h 37m 43.36s , +14d 05m 30.9s) | P/ | 60 | 18.1 |
1060 | 2026-11-12 00:34:47 | MASTER-SAAO | (04h 39m 33.12s , +13d 49m 19.9s) | P\ | 60 | 18.1 |
1139 | 2026-11-12 00:36:06 | MASTER-SAAO | (04h 37m 43.51s , +14d 05m 32.9s) | P/ | 60 | 18.2 |
1199 | 2026-11-12 00:36:06 | MASTER-SAAO | (04h 37m 43.51s , +14d 05m 32.9s) | P/ | 180 | 19.0 | Coadd
1139 | 2026-11-12 00:36:06 | MASTER-SAAO | (04h 39m 33.29s , +13d 49m 22.3s) | P\ | 60 | 18.1 |
1199 | 2026-11-12 00:36:06 | MASTER-SAAO | (04h 39m 33.29s , +13d 49m 22.1s) | P\ | 180 | 18.7 | Coadd
1218 | 2026-11-12 00:37:25 | MASTER-SAAO | (04h 37m 43.75s , +14d 05m 35.0s) | P/ | 60 | 18.1 |
1218 | 2026-11-12 00:37:25 | MASTER-SAAO | (04h 39m 33.43s , +13d 49m 24.4s) | P\ | 60 | 18.1 |
1297 | 2026-11-12 00:38:45 | MASTER-SAAO | (04h 37m 43.89s , +14d 05m 37.7s) | P/ | 60 | 18.1 |
1298 | 2026-11-12 00:38:45 | MASTER-SAAO | (04h 39m 33.57s , +13d 49m 26.8s) | P\ | 60 | 18.1 |
1377 | 2026-11-12 00:40:04 | MASTER-SAAO | (04h 37m 44.11s , +14d 05m 40.2s) | P/ | 60 | 18.1 |
1437 | 2026-11-12 00:40:04 | MASTER-SAAO | (04h 37m 44.11s , +14d 05m 40.2s) | P/ | 180 | 18.8 | Coadd
1377 | 2026-11-12 00:40:04 | MASTER-SAAO | (04h 39m 33.80s , +13d 49m 29.2s) | P\ | 60 | 18.1 |
1437 | 2026-11-12 00:40:04 | MASTER-SAAO | (04h 39m 33.83s , +13d 49m 29.1s) | P\ | 180 | 18.7 | Coadd
1456 | 2026-11-12 00:41:23 | MASTER-SAAO | (04h 37m 44.33s , +14d 05m 42.8s) | P/ | 60 | 18.1 |
1456 | 2026-11-12 00:41:23 | MASTER-SAAO | (04h 39m 33.95s , +13d 49m 31.6s) | P\ | 60 | 18.1 |
1535 | 2026-11-12 00:42:42 | MASTER-SAAO | (04h 37m 44.50s , +14d 05m 45.5s) | P/ | 60 | 18.1 |
1535 | 2026-11-12 00:42:42 | MASTER-SAAO | (04h 39m 33.94s , +13d 49m 34.1s) | P\ | 60 | 18.1 |
1614 | 2026-11-12 00:44:01 | MASTER-SAAO | (04h 37m 44.73s , +14d 05m 48.3s) | P/ | 60 | 18.1 |
1614 | 2026-11-12 00:44:01 | MASTER-SAAO | (04h 39m 34.24s , +13d 49m 35.9s) | P\ | 60 | 18.1 |
1693 | 2026-11-12 00:45:20 | MASTER-SAAO | (04h 37m 44.94s , +14d 05m 50.7s) | P/ | 60 | 18.1 |
1693 | 2026-11-12 00:45:20 | MASTER-SAAO | (04h 39m 34.33s , +13d 49m 43.6s) | P\ | 60 | 18.0 |
The observation and reduction will continue.
The message may be cited.
[1] - V.M. Lipunov, V.G. Kornilov, E.S. Gorbovskoy, N.A. Tiurina & A.S.Kuznetsov, 2023, Astronomical Robotic Networks and Operative Multichanel Astrophysics, Lomonosov MSU PRESS, 591pp.
http : // www.pereplet.ru/lipunov/625.html