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GCN Circular 35169

Subject
Fermi trigger No 722400249: Global MASTER-Net observations report
Date
2023-11-23T16:15:46Z (6 months 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) started inspect of the Fermi GRB231123.11 (trigger No 722400249,05h 35m 07.20s , -19d 34m 12.0s, R=9.16) errorbox  43021 sec after notice time and 43039 sec after trigger time at 2023-11-23 14:41:24 UT, with upper limit up to  17.3 mag. The observations began at zenith distance = 78 deg. The sun  altitude  is -49.9 deg. 

The galactic latitude b = -25 deg., longitude l = 223 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2313223

We obtain a following upper limits.  

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

   43069 | 2023-11-23 14:41:24 |        MASTER-Tunka | (04h 55m 51.77s , -14d 53m 40.5s) |   C |    60 | 16.6 |        
   43150 | 2023-11-23 14:42:44 |        MASTER-Tunka | (05h 09m 04.77s , -12d 58m 17.9s) |   C |    60 | 16.7 |        
   43320 | 2023-11-23 14:45:34 |        MASTER-Tunka | (05h 07m 06.62s , -11d 04m 07.4s) |   C |    60 | 17.0 |        
   44038 | 2023-11-23 14:57:32 |        MASTER-Tunka | (05h 24m 36.83s , -12d 58m 07.3s) |   C |    60 | 16.7 |        
   44125 | 2023-11-23 14:59:00 |        MASTER-Tunka | (05h 11m 32.51s , -14d 52m 10.2s) |   C |    60 | 16.7 |        
   44294 | 2023-11-23 15:01:48 |        MASTER-Tunka | (05h 07m 06.47s , -11d 04m 52.8s) |   C |    60 | 17.3 |        
   44631 | 2023-11-23 15:07:25 |        MASTER-Tunka | (05h 01m 25.47s , -18d 40m 07.3s) |   C |    60 | 16.6 |        
   45041 | 2023-11-23 15:14:15 |        MASTER-Tunka | (04h 55m 47.90s , -14d 50m 41.0s) |   C |    60 | 16.9 |        
   45125 | 2023-11-23 15:15:39 |        MASTER-Tunka | (05h 09m 08.63s , -12d 56m 53.5s) |   C |    60 | 17.0 |        
   45296 | 2023-11-23 15:18:31 |        MASTER-Tunka | (05h 07m 05.60s , -11d 03m 25.3s) |   C |    60 | 17.3 |        
   45711 | 2023-11-23 15:25:25 |        MASTER-Tunka | (05h 14m 17.11s , -16d 45m 15.9s) |   C |    60 | 16.8 |        
   46198 | 2023-11-23 15:33:32 |        MASTER-Tunka | (05h 24m 41.12s , -12d 56m 09.2s) |   C |    60 | 17.2 |        
   46282 | 2023-11-23 15:34:56 |        MASTER-Tunka | (05h 11m 24.50s , -14d 50m 52.8s) |   C |    60 | 17.0 |        
   47186 | 2023-11-23 15:50:00 |        MASTER-Tunka | (05h 17m 28.92s , -18d 39m 14.7s) |   C |    60 | 17.0 |        
   47274 | 2023-11-23 15:51:28 |        MASTER-Tunka | (05h 04m 52.33s , -20d 33m 15.4s) |   C |    60 | 16.9 |        
   47358 | 2023-11-23 15:52:53 |        MASTER-Tunka | (05h 27m 10.84s , -14d 49m 22.8s) |   C |    60 | 17.2 |        
   47522 | 2023-11-23 15:55:36 |        MASTER-Tunka | (04h 58m 22.51s , -16d 43m 13.0s) |   C |    60 | 17.0 |        
   47607 | 2023-11-23 15:57:01 |        MASTER-Tunka | (05h 14m 17.39s , -16d 44m 11.2s) |   C |    60 | 17.1 |        
   48269 | 2023-11-23 16:08:03 |        MASTER-Tunka | (05h 27m 05.48s , -14d 50m 45.3s) |   C |    60 | 17.3 |        
Filter C is a clear (unfiltred) band. 


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


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