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GCN Circular 35042

Subject
Integral GRB231115.65: Global MASTER-Net observations report
Date
2023-11-15T18:57:30Z (a year 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-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) was pointed to the Integral GRB231115.65 (trigger No 10427,09h 56m 07.98s , +69d 41m 21.3s, R=0.0511667) errorbox  4607 sec after notice time and 4634 sec after trigger time at 2023-11-15 16:53:37 UT, with upper limit up to  20.0 mag. The observations began at zenith distance = 47 deg. The sun  altitude  is -57.5 deg. 

The galactic latitude b = 41 deg., longitude l = 141 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2306494

We obtain a following upper limits.  

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

    4725 |        MASTER-Tunka |   C |   180 | 18.8 |        
    5241 |        MASTER-Tunka |   C |    90 | 17.9 |        
    5473 |        MASTER-Tunka |   C |    90 | 17.6 |        
    5708 |        MASTER-Tunka |   C |    90 | 17.6 |        
   10669 |        MASTER-Tunka |   C |   180 | 19.2 |        
   10829 |        MASTER-Tunka |   C |    90 | 18.8 |        
   11178 |        MASTER-Tunka |   C |    90 | 19.2 |        
   11409 |        MASTER-Tunka |   C |    90 | 19.4 |        
   11524 |        MASTER-Tunka |   C |    90 | 19.5 |        
   11638 |        MASTER-Tunka |   C |    90 | 19.6 |        
   11724 |        MASTER-Tunka |   C |    30 | 19.8 |        
   11840 |        MASTER-Tunka |   C |    30 | 20.0 |        
   11898 |        MASTER-Tunka |   C |    30 | 20.0 |        
Filter C is a clear (unfiltred) band. 


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