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GCN Circular 38400

Subject
Fermi trigger No 754701230: Global MASTER-Net observations report
Date
2024-12-01T01:30:42Z (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-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 GRB241130.97 (trigger No 754701230,06h 41m 09.60s , -26d 22m 48.0s, R=1) errorbox  80 sec after notice time and 90 sec after trigger time at 2024-11-30 23:15:15 UT, with upper limit up to  19.5 mag. The observations began at zenith distance = 18 deg. The sun  altitude  is -35.0 deg. 

The galactic latitude b = -13 deg., longitude l = 236 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2690291

We obtain a following upper limits.  

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

     100 | 2024-11-30 23:15:15 |         MASTER-SAAO | (06h 36m 22.91s , -27d 23m 19.4s) |   C |    20 | 18.6 |        
     125 | 2024-11-30 23:15:15 |         MASTER-SAAO | (06h 36m 22.91s , -27d 23m 19.4s) |   C |    70 | 19.2 |  Coadd 
     140 | 2024-11-30 23:15:55 |         MASTER-SAAO | (06h 36m 22.98s , -27d 23m 19.1s) |   C |    20 | 18.6 |        
     184 | 2024-11-30 23:16:34 |         MASTER-SAAO | (06h 36m 23.00s , -27d 23m 18.6s) |   C |    30 | 18.8 |        
     238 | 2024-11-30 23:17:23 |         MASTER-SAAO | (06h 36m 23.05s , -27d 23m 18.2s) |   C |    40 | 19.0 |        
     293 | 2024-11-30 23:17:23 |         MASTER-SAAO | (06h 36m 23.05s , -27d 23m 18.3s) |   C |   150 | 19.5 |  Coadd 
     302 | 2024-11-30 23:18:22 |         MASTER-SAAO | (06h 36m 23.09s , -27d 23m 17.4s) |   C |    50 | 19.1 |        
     376 | 2024-11-30 23:19:31 |         MASTER-SAAO | (06h 36m 23.12s , -27d 23m 16.5s) |   C |    60 | 19.2 |        
     619 | 2024-11-30 23:23:34 |         MASTER-SAAO | (06h 39m 55.86s , -26d 37m 24.9s) |   C |    60 | 19.1 |        
     679 | 2024-11-30 23:23:34 |         MASTER-SAAO | (06h 39m 55.87s , -26d 37m 24.9s) |   C |   180 | 19.5 |  Coadd 
     698 | 2024-11-30 23:24:53 |         MASTER-SAAO | (06h 39m 55.95s , -26d 37m 24.4s) |   C |    60 | 19.1 |        
     777 | 2024-11-30 23:26:12 |         MASTER-SAAO | (06h 39m 56.00s , -26d 37m 23.4s) |   C |    60 | 19.1 |        
     856 | 2024-11-30 23:27:31 |         MASTER-SAAO | (06h 39m 56.01s , -26d 37m 22.4s) |   C |    60 | 19.2 |        
Filter C is a clear (unfiltred) band. 


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