TITLE:   GCN CIRCULAR
NUMBER:  35063
SUBJECT: Fermi GRB 231116A: Global MASTER-Net observations report
DATE:    23/11/16 14:31:28 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>

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 GRB 231116A ( Fermi GBM team, GCN 35058) errorbox  11646 sec after notice time and 11682 sec after trigger time at 2023-11-16 12:55:17 UT, with upper limit up to  17.5 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -33.8 deg. 

The galactic latitude b = -76 deg., longitude l = 258 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2307066

We obtain a following upper limits.  

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

   11712 | 2023-11-16 12:55:17 |        MASTER-Tunka | (01h 20m 09.29s , -24d 19m 42.3s) |   C |    60 | 13.3 |        
   12543 | 2023-11-16 13:09:07 |        MASTER-Tunka | (01h 37m 31.14s , -23d 35m 46.0s) |   C |    60 | 13.5 |        
   14164 | 2023-11-16 13:36:08 |        MASTER-Tunka | (01h 38m 09.70s , -26d 14m 15.0s) |   C |    60 | 15.0 |        
   14164 | 2023-11-16 13:36:09 |        MASTER-Tunka | (01h 39m 04.83s , -25d 30m 31.7s) |   C |    60 | 17.5 |        
   15153 | 2023-11-16 13:52:38 |        MASTER-Tunka | (01h 55m 51.97s , -25d 28m 37.9s) |   C |    60 | 17.3 |        
   15595 | 2023-11-16 13:59:59 |        MASTER-Tunka | (01h 23m 39.29s , -27d 21m 52.5s) |   C |    60 | 17.4 |        
   16760 | 2023-11-16 14:19:24 |        MASTER-Tunka | (01h 39m 44.73s , -28d 05m 13.6s) |   C |    60 | 13.6 |        
   16760 | 2023-11-16 14:19:25 |        MASTER-Tunka | (01h 40m 42.06s , -27d 21m 29.3s) |   C |    60 | 16.2 |        
Filter C is a clear (unfiltred) band. 


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