GCN Circular 38069

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-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB241103.94 (trigger No 752365806,13h 04m 31.92s , +04d 55m 01.2s, R=29.25) errorbox  12165 sec after notice time and 12201 sec after trigger time at 2024-11-04 01:53:23 UT, with upper limit up to  18.6 mag. The observations began at zenith distance = 77 deg. The sun  altitude  is -20.7 deg. 

The galactic latitude b = 67 deg., longitude l = 313 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2658443

We obtain a following upper limits.  

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

   12231 | 2024-11-04 01:53:23 |         MASTER-SAAO | (11h 18m 23.79s , -04d 20m 40.9s) |   C |    60 | 16.1 |        
   12310 | 2024-11-04 01:54:42 |         MASTER-SAAO | (11h 26m 24.91s , -04d 22m 26.9s) |   C |    60 | 16.6 |        
   12389 | 2024-11-04 01:56:01 |         MASTER-SAAO | (11h 16m 16.72s , -00d 33m 40.1s) |   C |    60 | 17.3 |        
   12469 | 2024-11-04 01:57:20 |         MASTER-SAAO | (11h 24m 14.93s , -00d 32m 42.0s) |   C |    60 | 17.9 |        
   12548 | 2024-11-04 01:58:39 |         MASTER-SAAO | (11h 38m 48.87s , -08d 10m 16.3s) |   C |    60 | 18.1 |        
   12627 | 2024-11-04 01:59:59 |         MASTER-SAAO | (11h 46m 59.56s , -08d 10m 11.3s) |   C |    60 | 18.2 |        
   12712 | 2024-11-04 02:01:23 |         MASTER-SAAO | (11h 33m 38.32s , -04d 22m 06.7s) |   C |    60 | 17.7 |        
   12792 | 2024-11-04 02:02:43 |         MASTER-SAAO | (11h 35m 48.86s , -06d 14m 20.7s) |   C |    60 | 16.5 |        
   12871 | 2024-11-04 02:04:02 |         MASTER-SAAO | (11h 43m 56.43s , -06d 15m 21.4s) |   C |    60 | 16.9 |        
   12950 | 2024-11-04 02:05:22 |         MASTER-SAAO | (11h 16m 28.30s , +01d 19m 49.0s) |   C |    60 | 18.6 |        
   13030 | 2024-11-04 02:06:41 |         MASTER-SAAO | (11h 24m 24.99s , +01d 21m 07.6s) |   C |    60 | 18.5 |        
   13109 | 2024-11-04 02:08:00 |         MASTER-SAAO | (11h 32m 15.74s , -02d 26m 48.6s) |   C |    60 | 17.6 |        
Filter C is a clear (unfiltred) band. 


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