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GCN Circular 38076

Subject
Fermi GRB 241104A: Global MASTER-Net observations report
Date
2024-11-04T19:30:37Z (a month 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 Fermi GRB 241104A ( Fermi GBM team, GCN 38075Loading...
 
 ) errorbox  35 sec after notice time and 57 sec after trigger time at 2024-11-04 18:31:12 UT, with upper limit up to  20.1 mag. The observations began at zenith distance = 34 deg. The sun  altitude  is -49.2 deg. 

The galactic latitude b = -28 deg., longitude l = 142 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2659245

We obtain a following upper limits.  

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

      62 | 2024-11-04 18:31:12 |        MASTER-Tunka | (02h 03m 04.48s , +29d 10m 35.6s) |   C |    10 | 17.8 |        
      77 | 2024-11-04 18:31:12 |        MASTER-Tunka | (02h 03m 04.48s , +29d 10m 35.6s) |   C |    40 | 18.8 |  Coadd 
      75 | 2024-11-04 18:31:25 |        MASTER-Tunka | (02h 03m 04.48s , +29d 10m 35.8s) |   C |    10 | 17.9 |        
      94 | 2024-11-04 18:31:39 |        MASTER-Tunka | (02h 03m 04.47s , +29d 10m 35.9s) |   C |    20 | 18.5 |        
     117 | 2024-11-04 18:32:02 |        MASTER-Tunka | (02h 03m 04.45s , +29d 10m 36.7s) |   C |    20 | 18.5 |        
     153 | 2024-11-04 18:32:33 |        MASTER-Tunka | (02h 03m 36.52s , +31d 21m 04.2s) |   C |    30 | 18.7 |        
     188 | 2024-11-04 18:32:33 |        MASTER-Tunka | (02h 03m 36.52s , +31d 21m 04.2s) |   C |   100 | 19.7 |  Coadd 
     187 | 2024-11-04 18:33:07 |        MASTER-Tunka | (02h 03m 36.49s , +31d 21m 05.1s) |   C |    30 | 18.8 |        
     225 | 2024-11-04 18:33:40 |        MASTER-Tunka | (02h 03m 36.47s , +31d 21m 06.0s) |   C |    40 | 18.8 |        
     274 | 2024-11-04 18:34:23 |        MASTER-Tunka | (02h 03m 36.41s , +31d 21m 07.0s) |   C |    50 | 19.1 |        
     332 | 2024-11-04 18:35:17 |        MASTER-Tunka | (02h 03m 36.35s , +31d 21m 08.4s) |   C |    60 | 19.2 |        
     644 | 2024-11-04 18:39:59 |        MASTER-Tunka | (02h 09m 20.45s , +31d 47m 01.4s) |   C |   120 | 19.4 |        
     799 | 2024-11-04 18:39:59 |        MASTER-Tunka | (02h 09m 20.45s , +31d 47m 01.4s) |   C |   430 | 20.1 |  Coadd 
     777 | 2024-11-04 18:42:02 |        MASTER-Tunka | (02h 09m 20.33s , +31d 47m 04.1s) |   C |   140 | 19.5 |        
     935 | 2024-11-04 18:44:25 |        MASTER-Tunka | (02h 09m 20.15s , +31d 47m 07.5s) |   C |   170 | 19.4 |        
    1114 | 2024-11-04 18:47:19 |        MASTER-Tunka | (02h 09m 19.95s , +31d 47m 11.2s) |   C |   180 | 19.4 |        
Filter C is a clear (unfiltred) band. 


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