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GCN Circular 34663

Subject
Fermi trigger No 716145795: Global MASTER-Net observations report
Date
2023-09-11T19:30:44Z (9 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-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB230911.72 (trigger No 716145795,13h 20m 04.08s , +22d 45m 00.0s, R=22.5) errorbox  3923 sec after notice time and 3931 sec after trigger time at 2023-09-11 18:28:41 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -30.4 deg. 

The galactic latitude b = 82 deg., longitude l =  1 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2269059

We obtain a following upper limits.  

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

    3961 | 2023-09-11 18:28:41 |   MASTER-Kislovodsk | (13h 19m 18.50s , +39d 25m 08.4s) |   C |    60 | 17.7 |        
    4041 | 2023-09-11 18:30:02 |   MASTER-Kislovodsk | (12h 59m 41.52s , +39d 25m 54.4s) |   C |    60 | 16.1 |        
    4288 | 2023-09-11 18:34:08 |   MASTER-Kislovodsk | (13h 25m 13.11s , +43d 14m 08.8s) |   C |    60 | 17.6 |        
    4368 | 2023-09-11 18:35:28 |   MASTER-Kislovodsk | (13h 08m 27.03s , +45d 08m 27.7s) |   C |    60 | 17.5 |        
    4448 | 2023-09-11 18:36:48 |   MASTER-Kislovodsk | (13h 30m 00.25s , +45d 08m 12.0s) |   C |    60 | 17.3 |        
    4608 | 2023-09-11 18:39:28 |   MASTER-Kislovodsk | (13h 51m 25.36s , +45d 08m 03.0s) |   C |    60 | 17.9 |        
    4689 | 2023-09-11 18:40:49 |   MASTER-Kislovodsk | (13h 46m 02.67s , +43d 15m 33.9s) |   C |    60 | 17.8 |        
    4769 | 2023-09-11 18:42:09 |   MASTER-Kislovodsk | (13h 35m 50.37s , +47d 01m 21.6s) |   C |    60 | 17.8 |        
    5121 | 2023-09-11 18:48:01 |   MASTER-Kislovodsk | (13h 29m 54.06s , +45d 08m 47.8s) |   C |    60 | 17.3 |        
    5282 | 2023-09-11 18:50:42 |   MASTER-Kislovodsk | (13h 56m 41.44s , +44d 46m 59.4s) |   C |    60 | 14.6 |        
    5282 | 2023-09-11 18:50:42 |   MASTER-Kislovodsk | (13h 51m 20.77s , +45d 07m 29.8s) |   C |    60 | 17.5 |        
    5362 | 2023-09-11 18:52:02 |   MASTER-Kislovodsk | (13h 46m 07.06s , +43d 13m 41.8s) |   C |    60 | 17.6 |        
Filter C is a clear (unfiltred) band. 


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


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