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GCN Circular 34936

Subject
Swift GRB231104.07: Global MASTER-Net observations report
Date
2023-11-04T01:57:24Z (25 days ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
legacy email
V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik,  D. Vlasenko,
G.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile
(Observatorio Astronomico Felix Aguilar OAFA),

R. Rebolo, M. Serra
(The Instituto de Astrofisica de Canarias),

D. Buckley
(South African Astronomical Observatory),

O.A. Gress, N.M. Budnev, O.Ershova
(Irkutsk State University, API),

L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,
A.R.Corella, L.H.Rodriguez
(INAOE, Guillermo Haro Astrophysics Observatory),

A. Tlatov, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory),

V. Yurkov, A. Gabovich
(Blagoveschensk Educational State University)

MASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the Swift GRB231104.07 (trigger No 1194500,01h 35m 09.36s , +83d 47m 27.6s, R=0.05) errorbox  15 sec after notice time and 35 sec after trigger time at 2023-11-04 01:48:15 UT, with upper limit up to  14.7 mag. The observations began at zenith distance = 45 deg. The sun  altitude  is -28.0 deg. 

The galactic latitude b = 21 deg., longitude l = 124 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2294743

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      40 |      MASTER-Tavrida |   C |    10 | 13.8 |        
      57 |      MASTER-Tavrida |   C |    10 | 13.8 |        
      75 |      MASTER-Tavrida |   C |    10 | 13.9 |        
      98 |      MASTER-Tavrida |   C |    20 | 14.5 |        
     125 |      MASTER-Tavrida |   C |    20 | 14.3 |        
     157 |      MASTER-Tavrida |   C |    30 | 14.6 |        
     200 |      MASTER-Tavrida |   C |    40 | 14.7 |        
Filter C is a clear (unfiltred) band. 


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


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