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GCN Circular 38143

Subject
LIGO/Virgo/KAGRA S241109bn: Global MASTER-Net observations report
Date
2024-11-09T13:10:58Z (24 days ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
legacy 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-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the LIGO/Virgo/KAGRA S241109bn errorbox 16 sec after trigger time at 2024-11-09 11:59:40 UT, with upper limit up to  19.9 mag. The observations began at zenith distance = 60 deg. The sun  altitude  is -24.0 deg. 

The galactic latitude b = -22 deg., longitude l = 314 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=23757

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

      46 | 2024-11-09 11:59:40 |        MASTER-Tunka | (03h 17m 17.41s , +29d 28m 17.8s) |   C |    60 | 18.7 |        
     119 | 2024-11-09 12:00:52 |        MASTER-Tunka | (03h 08m 12.16s , +29d 28m 34.7s) |   C |    60 | 19.3 |        
     197 | 2024-11-09 12:02:11 |        MASTER-Tunka | (03h 17m 20.04s , +29d 30m 10.6s) |   C |    60 | 19.6 |        
     270 | 2024-11-09 12:03:24 |        MASTER-Tunka | (03h 08m 08.76s , +29d 28m 31.1s) |   C |    60 | 19.6 |        
     358 | 2024-11-09 12:04:52 |        MASTER-Tunka | (06h 50m 17.97s , +54d 17m 35.7s) |   C |    60 | 19.3 |        
     418 | 2024-11-09 12:04:52 |        MASTER-Tunka | (06h 50m 17.97s , +54d 17m 35.7s) |   C |   180 | 19.9 |  Coadd 
     441 | 2024-11-09 12:06:14 |        MASTER-Tunka | (07h 04m 01.27s , +54d 19m 14.3s) |   C |    60 | 19.4 |        
     501 | 2024-11-09 12:06:14 |        MASTER-Tunka | (07h 04m 01.27s , +54d 19m 14.3s) |   C |   180 | 19.8 |  Coadd 
     525 | 2024-11-09 12:07:39 |        MASTER-Tunka | (03h 17m 24.44s , +29d 29m 23.9s) |   C |    60 | 19.7 |        
     585 | 2024-11-09 12:07:39 |        MASTER-Tunka | (03h 17m 24.43s , +29d 29m 23.9s) |   C |   180 | 19.9 |  Coadd 
     599 | 2024-11-09 12:08:52 |        MASTER-Tunka | (03h 08m 06.68s , +29d 28m 20.6s) |   C |    60 | 19.7 |        
     659 | 2024-11-09 12:08:52 |        MASTER-Tunka | (03h 08m 06.68s , +29d 28m 20.5s) |   C |   180 | 19.7 |  Coadd 
     685 | 2024-11-09 12:10:18 |        MASTER-Tunka | (06h 50m 24.29s , +54d 16m 39.7s) |   C |    60 | 19.3 |        
     758 | 2024-11-09 12:11:31 |        MASTER-Tunka | (07h 04m 05.00s , +54d 18m 57.3s) |   C |    60 | 19.5 |        
     844 | 2024-11-09 12:12:58 |        MASTER-Tunka | (03h 17m 20.88s , +29d 28m 58.5s) |   C |    60 | 18.8 |        
     917 | 2024-11-09 12:14:11 |        MASTER-Tunka | (03h 08m 12.30s , +29d 30m 19.5s) |   C |    60 | 16.9 |        
    1002 | 2024-11-09 12:15:35 |        MASTER-Tunka | (06h 50m 19.98s , +54d 17m 28.4s) |   C |    60 | 19.4 |        
    1085 | 2024-11-09 12:16:58 |        MASTER-Tunka | (04h 03m 15.82s , +52d 17m 44.6s) |   C |    60 | 18.7 |        
    1145 | 2024-11-09 12:16:58 |        MASTER-Tunka | (04h 03m 15.82s , +52d 17m 44.6s) |   C |   180 | 19.0 |  Coadd 
    1158 | 2024-11-09 12:18:12 |        MASTER-Tunka | (04h 16m 14.49s , +52d 17m 01.7s) |   C |    60 | 18.6 |        
    1238 | 2024-11-09 12:19:32 |        MASTER-Tunka | (03h 17m 23.75s , +29d 28m 36.6s) |   C |    60 | 19.0 |        
    1311 | 2024-11-09 12:20:45 |        MASTER-Tunka | (03h 08m 09.79s , +29d 30m 04.7s) |   C |    60 | 19.4 |        
    1389 | 2024-11-09 12:22:02 |        MASTER-Tunka | (04h 03m 13.82s , +52d 17m 17.8s) |   C |    60 | 17.6 |        
    1463 | 2024-11-09 12:23:16 |        MASTER-Tunka | (04h 16m 22.30s , +52d 18m 59.7s) |   C |    60 | 16.6 |        
    1526 | 2024-11-09 12:24:20 |        MASTER-Tunka | (03h 17m 18.98s , +29d 29m 37.5s) |   C |    60 | 19.3 |        
    1599 | 2024-11-09 12:25:33 |        MASTER-Tunka | (03h 08m 08.00s , +29d 30m 36.0s) |   C |    60 | 19.7 |        
    1676 | 2024-11-09 12:26:50 |        MASTER-Tunka | (04h 03m 17.81s , +52d 17m 54.6s) |   C |    60 | 18.5 |        
    1933 | 2024-11-09 12:31:06 |        MASTER-Tunka | (07h 04m 09.13s , +54d 18m 36.6s) |   C |    60 | 18.4 |        
    2018 | 2024-11-09 12:32:32 |        MASTER-Tunka | (03h 17m 22.12s , +29d 29m 05.6s) |   C |    60 | 19.8 |        
    2093 | 2024-11-09 12:33:46 |        MASTER-Tunka | (03h 08m 12.87s , +29d 30m 26.8s) |   C |    60 | 19.8 |        
    2177 | 2024-11-09 12:35:11 |        MASTER-Tunka | (07h 04m 07.96s , +54d 17m 51.9s) |   C |    60 | 17.4 |        
    2237 | 2024-11-09 12:35:11 |        MASTER-Tunka | (07h 04m 07.97s , +54d 17m 51.9s) |   C |   180 | 17.6 |  Coadd 
    2249 | 2024-11-09 12:36:22 |        MASTER-Tunka | (07h 04m 08.18s , +54d 18m 51.8s) |   C |    60 | 16.7 |        
    2322 | 2024-11-09 12:37:35 |        MASTER-Tunka | (06h 50m 31.54s , +54d 17m 14.9s) |   C |    60 | 17.6 |        
    2382 | 2024-11-09 12:37:35 |        MASTER-Tunka | (06h 50m 31.54s , +54d 17m 14.9s) |   C |   180 | 17.7 |  Coadd 
    2395 | 2024-11-09 12:38:49 |        MASTER-Tunka | (06h 50m 25.08s , +54d 16m 13.8s) |   C |    60 | 16.8 |        
    2467 | 2024-11-09 12:40:00 |        MASTER-Tunka | (06h 50m 32.11s , +54d 16m 31.8s) |   C |    60 | 16.5 |        
    2547 | 2024-11-09 12:41:21 |        MASTER-Tunka | (04h 16m 22.23s , +52d 18m 52.2s) |   C |    60 | 19.0 |        
    2621 | 2024-11-09 12:42:35 |        MASTER-Tunka | (04h 16m 22.42s , +52d 17m 22.2s) |   C |    60 | 18.9 |        
    2681 | 2024-11-09 12:42:35 |        MASTER-Tunka | (04h 16m 22.42s , +52d 17m 22.1s) |   C |   180 | 19.6 |  Coadd 
    2693 | 2024-11-09 12:43:46 |        MASTER-Tunka | (04h 16m 26.54s , +52d 19m 08.7s) |   C |    60 | 18.5 |        
    2767 | 2024-11-09 12:45:01 |        MASTER-Tunka | (04h 03m 14.18s , +52d 18m 07.5s) |   C |    60 | 18.5 |        
    2827 | 2024-11-09 12:45:01 |        MASTER-Tunka | (04h 03m 14.18s , +52d 18m 07.5s) |   C |   180 | 19.0 |  Coadd 
    2838 | 2024-11-09 12:46:12 |        MASTER-Tunka | (04h 03m 13.71s , +52d 19m 08.9s) |   C |    60 | 17.5 |        
    2911 | 2024-11-09 12:47:25 |        MASTER-Tunka | (04h 03m 20.25s , +52d 18m 10.4s) |   C |    60 | 18.8 |        
    3096 | 2024-11-09 12:50:29 |        MASTER-Tunka | (07h 04m 15.57s , +54d 17m 17.7s) |   C |    60 | 16.8 |        
    3169 | 2024-11-09 12:51:42 |        MASTER-Tunka | (07h 04m 13.39s , +54d 18m 36.3s) |   C |    60 | 18.0 |        
    3244 | 2024-11-09 12:52:58 |        MASTER-Tunka | (07h 04m 13.65s , +54d 16m 54.5s) |   C |    60 | 19.1 |        
    3325 | 2024-11-09 12:54:19 |        MASTER-Tunka | (04h 16m 27.69s , +52d 19m 18.9s) |   C |    60 | 19.4 |        
    3400 | 2024-11-09 12:55:34 |        MASTER-Tunka | (04h 16m 21.11s , +52d 18m 32.8s) |   C |    60 | 19.5 |        
    3474 | 2024-11-09 12:56:48 |        MASTER-Tunka | (04h 16m 20.44s , +52d 19m 34.4s) |   C |    60 | 19.5 |        
    3554 | 2024-11-09 12:58:07 |        MASTER-Tunka | (06h 07m 40.88s , +52d 20m 32.2s) |   C |    60 | 19.3 |        
    3626 | 2024-11-09 12:59:20 |        MASTER-Tunka | (06h 20m 54.32s , +52d 21m 03.6s) |   C |    60 | 19.4 |        
    3700 | 2024-11-09 13:00:33 |        MASTER-Tunka | (06h 07m 44.43s , +52d 22m 11.8s) |   C |    60 | 19.3 |        
    3779 | 2024-11-09 13:01:53 |        MASTER-Tunka | (06h 20m 51.01s , +52d 21m 03.6s) |   C |    60 | 19.3 |        
    3853 | 2024-11-09 13:03:06 |        MASTER-Tunka | (06h 07m 48.85s , +52d 22m 12.7s) |   C |    60 | 19.3 |        
    3958 | 2024-11-09 13:04:51 |        MASTER-Tunka | (06h 24m 27.80s , +54d 17m 07.5s) |   C |    60 | 19.5 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.


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