GCN Circular 39942
Subject
IceCube Alert 250330.35: Global MASTER-Net observations report
Date
2025-03-30T10:39:28Z (a month ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
email
V.Lipunov, E.Gorbovskoy, N.Tiurina, P.Balanutsa, , D.Vlasenko, I.Panchenko,
A.Kuznetsov, G.Antipov, A.Sankovich, A.Sosnovskij, Yu.Tselik, M.Gulyaev, Ya.Kechin,
V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU),
O.Gress, N.Budnev (ISU),
C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity)
D.Buckley (SAAO),
R.Rebolo (The Instituto de Astrofisica de Canarias),
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,
A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory)
MASTER-OAFA robotic telescope (Global 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 pointed to the IceCube Alert 250330.35 (trigger No 49427574,20h 29m 18.48s , +10d 58m 33.6s, R=0.51) errorbox 91 sec after notice time and 148 sec after trigger time at 2025-03-30 08:33:34 UT, with upper limit up to 19.2 mag. The observations began at zenith distance = 69 deg. The sun altitude is -28.6 deg.
The galactic latitude b = -16 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=2828042
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
154 | 2025-03-30 08:33:34 | MASTER-OAFA | (20h 20m 09.80s , +10d 22m 06.8s) | C | 10 | 16.4 |
179 | 2025-03-30 08:33:34 | MASTER-OAFA | (20h 20m 09.79s , +10d 22m 06.9s) | C | 60 | 17.3 | Coadd
164 | 2025-03-30 08:33:35 | MASTER-OAFA | (20h 29m 20.45s , +10d 45m 17.7s) | C | 30 | 17.7 |
209 | 2025-03-30 08:33:35 | MASTER-OAFA | (20h 29m 20.45s , +10d 45m 17.7s) | C | 120 | 18.4 | Coadd
454 | 2025-03-30 08:33:35 | MASTER-OAFA | (20h 29m 20.44s , +10d 45m 17.7s) | C | 610 | 18.3 | Coadd
194 | 2025-03-30 08:34:10 | MASTER-OAFA | (20h 20m 10.00s , +10d 22m 13.8s) | C | 20 | 16.8 |
205 | 2025-03-30 08:34:11 | MASTER-OAFA | (20h 29m 20.56s , +10d 45m 22.0s) | C | 40 | 17.9 |
246 | 2025-03-30 08:34:57 | MASTER-OAFA | (20h 20m 10.18s , +10d 22m 21.5s) | C | 30 | 16.9 |
256 | 2025-03-30 08:34:57 | MASTER-OAFA | (20h 29m 20.73s , +10d 45m 26.7s) | C | 50 | 17.9 |
307 | 2025-03-30 08:35:53 | MASTER-OAFA | (20h 20m 10.41s , +10d 22m 29.9s) | C | 40 | 17.0 |
367 | 2025-03-30 08:35:53 | MASTER-OAFA | (20h 20m 10.41s , +10d 22m 29.9s) | C | 160 | 17.5 | Coadd
318 | 2025-03-30 08:35:54 | MASTER-OAFA | (20h 29m 20.96s , +10d 45m 32.0s) | C | 60 | 17.9 |
398 | 2025-03-30 08:35:54 | MASTER-OAFA | (20h 29m 20.96s , +10d 45m 32.0s) | C | 220 | 18.5 | Coadd
378 | 2025-03-30 08:36:59 | MASTER-OAFA | (20h 20m 10.57s , +10d 22m 37.6s) | C | 50 | 17.1 |
389 | 2025-03-30 08:36:59 | MASTER-OAFA | (20h 29m 21.10s , +10d 45m 37.1s) | C | 70 | 18.0 |
464 | 2025-03-30 08:38:15 | MASTER-OAFA | (20h 20m 10.80s , +10d 22m 47.2s) | C | 70 | 17.0 |
475 | 2025-03-30 08:38:15 | MASTER-OAFA | (20h 29m 21.27s , +10d 45m 43.8s) | C | 90 | 17.9 |
571 | 2025-03-30 08:39:52 | MASTER-OAFA | (20h 20m 11.10s , +10d 22m 57.3s) | C | 90 | 17.3 |
696 | 2025-03-30 08:39:52 | MASTER-OAFA | (20h 20m 11.09s , +10d 22m 57.2s) | C | 340 | 17.9 | Coadd
581 | 2025-03-30 08:39:52 | MASTER-OAFA | (20h 29m 21.47s , +10d 45m 50.8s) | C | 110 | 18.2 |
751 | 2025-03-30 08:39:52 | MASTER-OAFA | (20h 29m 21.47s , +10d 45m 50.6s) | C | 450 | 18.7 | Coadd
697 | 2025-03-30 08:41:48 | MASTER-OAFA | (20h 20m 11.33s , +10d 23m 08.5s) | C | 110 | 17.3 |
707 | 2025-03-30 08:41:48 | MASTER-OAFA | (20h 29m 21.71s , +10d 45m 59.7s) | C | 130 | 17.9 |
848 | 2025-03-30 08:44:04 | MASTER-OAFA | (20h 20m 11.45s , +10d 23m 18.4s) | C | 140 | 17.5 |
858 | 2025-03-30 08:44:04 | MASTER-OAFA | (20h 29m 21.88s , +10d 46m 08.9s) | C | 160 | 18.2 |
1024 | 2025-03-30 08:46:50 | MASTER-OAFA | (20h 20m 11.60s , +10d 23m 29.1s) | C | 160 | 17.3 |
1034 | 2025-03-30 08:46:50 | MASTER-OAFA | (20h 29m 22.17s , +10d 46m 20.1s) | C | 180 | 18.0 |
1210 | 2025-03-30 08:49:56 | MASTER-OAFA | (20h 20m 11.76s , +10d 23m 40.7s) | C | 160 | 17.6 |
1370 | 2025-03-30 08:49:56 | MASTER-OAFA | (20h 20m 11.76s , +10d 23m 40.8s) | C | 480 | 18.1 | Coadd
1221 | 2025-03-30 08:49:56 | MASTER-OAFA | (20h 29m 22.37s , +10d 46m 30.8s) | C | 180 | 18.4 |
1408 | 2025-03-30 08:53:04 | MASTER-OAFA | (20h 29m 22.58s , +10d 46m 41.4s) | C | 180 | 18.4 |
1584 | 2025-03-30 08:56:10 | MASTER-OAFA | (20h 20m 12.02s , +10d 24m 01.1s) | C | 160 | 17.6 |
1594 | 2025-03-30 08:56:10 | MASTER-OAFA | (20h 29m 22.74s , +10d 46m 51.5s) | C | 180 | 18.4 |
1774 | 2025-03-30 08:56:10 | MASTER-OAFA | (20h 29m 22.75s , +10d 46m 51.5s) | C | 540 | 18.9 | Coadd
1770 | 2025-03-30 08:59:15 | MASTER-OAFA | (20h 20m 12.11s , +10d 24m 09.8s) | C | 160 | 17.6 |
1780 | 2025-03-30 08:59:16 | MASTER-OAFA | (20h 29m 22.89s , +10d 47m 00.1s) | C | 180 | 18.4 |
1956 | 2025-03-30 09:02:22 | MASTER-OAFA | (20h 20m 12.11s , +10d 24m 17.4s) | C | 160 | 17.6 |
2116 | 2025-03-30 09:02:22 | MASTER-OAFA | (20h 20m 12.11s , +10d 24m 17.3s) | C | 480 | 18.2 | Coadd
1966 | 2025-03-30 09:02:22 | MASTER-OAFA | (20h 29m 23.02s , +10d 47m 08.9s) | C | 180 | 18.6 |
2142 | 2025-03-30 09:05:28 | MASTER-OAFA | (20h 20m 12.15s , +10d 24m 26.4s) | C | 160 | 17.8 |
2152 | 2025-03-30 09:05:28 | MASTER-OAFA | (20h 29m 23.11s , +10d 47m 17.6s) | C | 180 | 18.6 |
2332 | 2025-03-30 09:05:28 | MASTER-OAFA | (20h 29m 23.11s , +10d 47m 17.6s) | C | 540 | 19.1 | Coadd
2328 | 2025-03-30 09:08:34 | MASTER-OAFA | (20h 20m 12.13s , +10d 24m 34.2s) | C | 160 | 17.7 |
2338 | 2025-03-30 09:08:34 | MASTER-OAFA | (20h 29m 23.16s , +10d 47m 25.6s) | C | 180 | 18.7 |
2514 | 2025-03-30 09:11:40 | MASTER-OAFA | (20h 20m 12.11s , +10d 24m 42.9s) | C | 160 | 17.7 |
2674 | 2025-03-30 09:11:40 | MASTER-OAFA | (20h 20m 12.11s , +10d 24m 42.9s) | C | 480 | 18.2 | Coadd
2525 | 2025-03-30 09:11:40 | MASTER-OAFA | (20h 29m 23.23s , +10d 47m 33.9s) | C | 180 | 18.6 |
2700 | 2025-03-30 09:14:46 | MASTER-OAFA | (20h 20m 11.96s , +10d 24m 49.3s) | C | 160 | 17.7 |
2710 | 2025-03-30 09:14:46 | MASTER-OAFA | (20h 29m 23.24s , +10d 47m 41.1s) | C | 180 | 18.6 |
2890 | 2025-03-30 09:14:46 | MASTER-OAFA | (20h 29m 23.24s , +10d 47m 41.1s) | C | 540 | 19.2 | Coadd
2886 | 2025-03-30 09:17:52 | MASTER-OAFA | (20h 20m 11.87s , +10d 24m 55.7s) | C | 160 | 17.7 |
2897 | 2025-03-30 09:17:52 | MASTER-OAFA | (20h 29m 23.23s , +10d 47m 47.9s) | C | 180 | 18.6 |
3073 | 2025-03-30 09:20:58 | MASTER-OAFA | (20h 20m 11.77s , +10d 25m 01.5s) | C | 160 | 17.9 |
3233 | 2025-03-30 09:20:58 | MASTER-OAFA | (20h 20m 11.77s , +10d 25m 01.5s) | C | 480 | 18.3 | Coadd
3083 | 2025-03-30 09:20:59 | MASTER-OAFA | (20h 29m 23.17s , +10d 47m 54.3s) | C | 180 | 18.8 |
3259 | 2025-03-30 09:24:05 | MASTER-OAFA | (20h 20m 11.65s , +10d 25m 07.5s) | C | 160 | 17.8 |
3270 | 2025-03-30 09:24:05 | MASTER-OAFA | (20h 29m 23.08s , +10d 48m 00.1s) | C | 180 | 18.8 |
3450 | 2025-03-30 09:24:05 | MASTER-OAFA | (20h 29m 23.08s , +10d 48m 00.1s) | C | 540 | 19.2 | Coadd
3446 | 2025-03-30 09:27:11 | MASTER-OAFA | (20h 20m 11.57s , +10d 25m 14.3s) | C | 160 | 17.8 |
3456 | 2025-03-30 09:27:12 | MASTER-OAFA | (20h 29m 22.99s , +10d 48m 06.0s) | C | 180 | 18.8 |
3631 | 2025-03-30 09:30:17 | MASTER-OAFA | (20h 20m 11.32s , +10d 25m 17.7s) | C | 160 | 17.9 |
3791 | 2025-03-30 09:30:17 | MASTER-OAFA | (20h 20m 11.32s , +10d 25m 17.7s) | C | 480 | 18.3 | Coadd
3642 | 2025-03-30 09:30:18 | MASTER-OAFA | (20h 29m 22.85s , +10d 48m 10.9s) | C | 180 | 18.9 |
3818 | 2025-03-30 09:33:23 | MASTER-OAFA | (20h 20m 11.05s , +10d 25m 20.8s) | C | 160 | 17.9 |
3828 | 2025-03-30 09:33:24 | MASTER-OAFA | (20h 29m 22.71s , +10d 48m 15.8s) | C | 180 | 18.8 |
4008 | 2025-03-30 09:33:24 | MASTER-OAFA | (20h 29m 22.70s , +10d 48m 15.8s) | C | 540 | 19.2 | Coadd
4004 | 2025-03-30 09:36:30 | MASTER-OAFA | (20h 20m 10.69s , +10d 25m 22.7s) | C | 160 | 17.7 |
4014 | 2025-03-30 09:36:30 | MASTER-OAFA | (20h 29m 22.52s , +10d 48m 19.4s) | C | 180 | 18.8 |
4191 | 2025-03-30 09:39:37 | MASTER-OAFA | (20h 20m 10.39s , +10d 25m 26.8s) | C | 160 | 17.8 |
4351 | 2025-03-30 09:39:37 | MASTER-OAFA | (20h 20m 10.39s , +10d 25m 26.8s) | C | 480 | 18.2 | Coadd
4201 | 2025-03-30 09:39:37 | MASTER-OAFA | (20h 29m 22.33s , +10d 48m 23.2s) | C | 180 | 18.7 |
4377 | 2025-03-30 09:42:43 | MASTER-OAFA | (20h 20m 10.20s , +10d 25m 32.4s) | C | 160 | 17.6 |
4387 | 2025-03-30 09:42:43 | MASTER-OAFA | (20h 29m 22.13s , +10d 48m 27.3s) | C | 180 | 18.5 |
4564 | 2025-03-30 09:45:49 | MASTER-OAFA | (20h 20m 09.80s , +10d 25m 34.1s) | C | 160 | 17.6 |
4574 | 2025-03-30 09:45:50 | MASTER-OAFA | (20h 29m 21.90s , +10d 48m 30.3s) | C | 180 | 18.5 |
4750 | 2025-03-30 09:48:56 | MASTER-OAFA | (20h 20m 09.46s , +10d 25m 36.8s) | C | 160 | 17.5 |
4910 | 2025-03-30 09:48:56 | MASTER-OAFA | (20h 20m 09.48s , +10d 25m 36.8s) | C | 480 | 17.6 | Coadd
4760 | 2025-03-30 09:48:56 | MASTER-OAFA | (20h 29m 21.60s , +10d 48m 33.2s) | C | 180 | 17.9 |
4937 | 2025-03-30 09:52:02 | MASTER-OAFA | (20h 20m 09.11s , +10d 25m 38.9s) | C | 160 | 17.2 |
5122 | 2025-03-30 09:55:08 | MASTER-OAFA | (20h 20m 08.75s , +10d 25m 41.4s) | C | 160 | 16.9 |
5308 | 2025-03-30 09:58:14 | MASTER-OAFA | (20h 20m 08.40s , +10d 25m 43.9s) | C | 160 | 16.5 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.