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GCN Circular 38408

Subject
Fermi GRB 241201A: Global MASTER-Net observations report
Date
2024-12-01T20:00:43Z (12 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 Fermi GRB 241201A ( Fermi GBM team, GCN 38403Loading...
 
 ) errorbox  14079 sec after notice time and 14110 sec after trigger time at 2024-12-01 18:51:09 UT, with upper limit up to  19.9 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -53.3 deg. 

The galactic latitude b = 63 deg., longitude l = 275 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2691073

We obtain a following upper limits.  

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

   14141 | 2024-12-01 18:51:09 |        MASTER-Tunka | (11h 48m 39.15s , +06d 53m 47.2s) |   C |    60 | 19.3 |        
   14201 | 2024-12-01 18:51:09 |        MASTER-Tunka | (11h 48m 39.15s , +06d 53m 47.2s) |   C |   180 | 19.8 |  Coadd 
   14579 | 2024-12-01 18:58:27 |        MASTER-Tunka | (11h 46m 11.74s , +05d 01m 12.0s) |   C |    60 | 19.0 |        
   14639 | 2024-12-01 18:58:27 |        MASTER-Tunka | (11h 46m 11.73s , +05d 01m 12.1s) |   C |   180 | 19.6 |  Coadd 
   14728 | 2024-12-01 19:00:56 |        MASTER-Tunka | (11h 55m 50.65s , +06d 54m 27.7s) |   C |    60 | 19.4 |        
   14788 | 2024-12-01 19:00:56 |        MASTER-Tunka | (11h 55m 50.64s , +06d 54m 27.8s) |   C |   180 | 19.8 |  Coadd 
   14956 | 2024-12-01 19:04:45 |        MASTER-Tunka | (12h 03m 54.69s , +06d 53m 20.5s) |   C |    60 | 19.2 |        
   15016 | 2024-12-01 19:04:45 |        MASTER-Tunka | (12h 03m 54.67s , +06d 53m 20.7s) |   C |   180 | 19.8 |  Coadd 
   15029 | 2024-12-01 19:05:58 |        MASTER-Tunka | (11h 48m 42.69s , +06d 54m 06.9s) |   C |    60 | 19.2 |        
   15322 | 2024-12-01 19:10:50 |        MASTER-Tunka | (11h 46m 08.97s , +05d 00m 58.9s) |   C |    60 | 19.4 |        
   15468 | 2024-12-01 19:13:16 |        MASTER-Tunka | (11h 55m 58.43s , +06d 54m 49.9s) |   C |    60 | 19.5 |        
   15541 | 2024-12-01 19:14:30 |        MASTER-Tunka | (11h 53m 27.89s , +05d 00m 10.0s) |   C |    60 | 19.5 |        
   15601 | 2024-12-01 19:14:30 |        MASTER-Tunka | (11h 53m 27.89s , +05d 00m 09.9s) |   C |   180 | 19.9 |  Coadd 
   15613 | 2024-12-01 19:15:41 |        MASTER-Tunka | (12h 01m 27.44s , +05d 01m 21.4s) |   C |    60 | 19.3 |        
   15673 | 2024-12-01 19:15:41 |        MASTER-Tunka | (12h 01m 27.43s , +05d 01m 21.6s) |   C |   180 | 19.9 |  Coadd 
   15685 | 2024-12-01 19:16:53 |        MASTER-Tunka | (12h 03m 58.03s , +06d 53m 52.1s) |   C |    60 | 19.4 |        
   16624 | 2024-12-01 19:32:32 |        MASTER-Tunka | (11h 46m 08.42s , +05d 02m 28.5s) |   C |    60 | 19.3 |        
   16696 | 2024-12-01 19:33:45 |        MASTER-Tunka | (11h 55m 58.00s , +06d 55m 15.8s) |   C |    60 | 19.6 |        
   16769 | 2024-12-01 19:34:57 |        MASTER-Tunka | (11h 53m 21.59s , +05d 00m 20.6s) |   C |    60 | 19.5 |        
   16842 | 2024-12-01 19:36:10 |        MASTER-Tunka | (12h 01m 30.45s , +05d 00m 28.6s) |   C |    60 | 19.3 |        
   16914 | 2024-12-01 19:37:23 |        MASTER-Tunka | (12h 03m 57.99s , +06d 56m 01.3s) |   C |    60 | 19.5 |        
   17358 | 2024-12-01 19:44:46 |        MASTER-Tunka | (11h 44m 31.08s , +03d 07m 24.0s) |   C |    60 | 19.5 |        
   17430 | 2024-12-01 19:45:59 |        MASTER-Tunka | (11h 53m 27.91s , +05d 02m 25.5s) |   C |    60 | 19.6 |        
   17503 | 2024-12-01 19:47:11 |        MASTER-Tunka | (12h 01m 23.85s , +05d 01m 30.2s) |   C |    60 | 19.6 |        
Filter C is a clear (unfiltred) band. 


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