GCN Circular 46135
Subject
EP Alert 261102.98: Global MASTER-Net observations report
Date
2026-11-03T08:09:28Z (2 days ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
email
M. Segura, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA)
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)
D.Buckley (SAAO),
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)
MASTER-OAFA robotic telescope [1] located in Argentina (OAFA observatory of San Juan National University) was pointed to the EP Alert 261102.98 (trigger No 1709322206,03h 54m 56.16s , +16d 19m 26.4s, R=0.0516657) errorbox 27240 sec after notice time and 27678 sec after trigger time at 2026-11-03 07:07:18 UT, with upper limit up to 20.3 mag. The observations began at zenith distance = 52 deg. The sun altitude is -28.3 deg.
The galactic latitude b = -27 deg., longitude l = 174 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=3532300
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
27708 | 2026-11-03 07:07:18 | MASTER-OAFA | (03h 54m 06.26s , +16d 18m 07.1s) | C | 60 | 20.1 |
27785 | 2026-11-03 07:08:35 | MASTER-OAFA | (03h 54m 02.37s , +16d 19m 20.6s) | C | 60 | 20.1 |
27859 | 2026-11-03 07:09:50 | MASTER-OAFA | (03h 54m 02.36s , +16d 18m 07.7s) | C | 60 | 20.1 |
27935 | 2026-11-03 07:11:05 | MASTER-OAFA | (03h 54m 05.56s , +16d 19m 39.7s) | C | 60 | 20.0 |
28010 | 2026-11-03 07:12:20 | MASTER-OAFA | (03h 53m 58.75s , +16d 18m 48.4s) | C | 60 | 20.1 |
28086 | 2026-11-03 07:13:37 | MASTER-OAFA | (03h 53m 59.28s , +16d 19m 49.7s) | C | 60 | 20.0 |
28161 | 2026-11-03 07:14:51 | MASTER-OAFA | (03h 54m 06.12s , +16d 18m 51.3s) | C | 60 | 20.1 |
28238 | 2026-11-03 07:16:08 | MASTER-OAFA | (03h 53m 58.50s , +16d 17m 52.5s) | C | 60 | 20.1 |
28314 | 2026-11-03 07:17:24 | MASTER-OAFA | (03h 54m 06.01s , +16d 18m 13.8s) | C | 60 | 20.0 |
28420 | 2026-11-03 07:18:41 | MASTER-OAFA | (03h 54m 02.08s , +16d 19m 31.4s) | C | 120 | 20.3 |
28558 | 2026-11-03 07:20:58 | MASTER-OAFA | (03h 54m 02.02s , +16d 18m 12.2s) | C | 120 | 20.3 |
28695 | 2026-11-03 07:23:16 | MASTER-OAFA | (03h 54m 05.17s , +16d 19m 46.1s) | C | 120 | 20.1 |
28831 | 2026-11-03 07:25:31 | MASTER-OAFA | (03h 53m 59.38s , +16d 19m 01.9s) | C | 120 | 19.9 |
28968 | 2026-11-03 07:27:48 | MASTER-OAFA | (03h 53m 59.79s , +16d 20m 03.7s) | C | 120 | 19.5 |
29104 | 2026-11-03 07:30:04 | MASTER-OAFA | (03h 54m 04.69s , +16d 19m 05.4s) | C | 120 | 19.5 |
29207 | 2026-11-03 07:32:17 | MASTER-OAFA | (03h 53m 57.95s , +16d 18m 06.4s) | C | 60 | 18.4 |
29283 | 2026-11-03 07:33:33 | MASTER-OAFA | (03h 54m 04.60s , +16d 18m 22.1s) | C | 60 | 18.9 |
29363 | 2026-11-03 07:34:53 | MASTER-OAFA | (03h 54m 01.59s , +16d 19m 51.8s) | C | 60 | 18.5 |
29437 | 2026-11-03 07:36:07 | MASTER-OAFA | (03h 54m 01.57s , +16d 18m 31.1s) | C | 60 | 18.3 |
29512 | 2026-11-03 07:37:22 | MASTER-OAFA | (03h 54m 03.92s , +16d 19m 56.1s) | C | 60 | 18.2 |
29589 | 2026-11-03 07:38:39 | MASTER-OAFA | (03h 53m 59.05s , +16d 19m 11.1s) | C | 60 | 18.9 |
Filter C is a clear (unfiltred) band.
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