GCN Circular 37196

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 Integral GRB240816.79 (trigger No 10856,06h 04m 12.96s , +07d 16m 04.5s, R=0.0546667) errorbox  19131 sec after notice time and 19167 sec after trigger time at 2024-08-17 00:20:52 UT, with upper limit up to  18.1 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -22.7 deg. 

The galactic latitude b = -6 deg., longitude l = 201 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2565480

We obtain a following upper limits.  

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

   19257 |      MASTER-Tavrida |   C |   180 | 17.5 |        
   19437 |      MASTER-Tavrida |   C |   540 | 18.0 |  Coadd 
   19450 |      MASTER-Tavrida |   C |   180 | 17.5 |        
   19645 |      MASTER-Tavrida |   C |   180 | 17.6 |        
   19841 |      MASTER-Tavrida |   C |   180 | 17.6 |        
   20021 |      MASTER-Tavrida |   C |   540 | 18.1 |  Coadd 
   20034 |      MASTER-Tavrida |   C |   180 | 17.7 |        
   20228 |      MASTER-Tavrida |   C |   180 | 17.7 |        
   20421 |      MASTER-Tavrida |   C |   180 | 17.8 |        
Filter C is a clear (unfiltred) band. 


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