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GCN Circular 35924

Subject
Fermi GRB 240314A: Global MASTER-Net observations report
Date
2024-03-14T12:45:42Z (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-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 240314A ( Fermi GBM team, GCN 35923Not found
 
 
) errorbox  2094 sec after notice time and 2130 sec after trigger time at 2024-03-14 12:06:38 UT, with upper limit up to  21.0 mag. Observations started at twilight.  The observations began at zenith distance = 49 deg. The sun  altitude  is -9.8 deg. 

The galactic latitude b = 44 deg., longitude l = 208 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2399137

We obtain a following upper limits.  

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

    2161 | 2024-03-14 12:06:38 |        MASTER-Tunka | (09h 38m 21.12s , +19d 35m 30.4s) |   C |    60 | 14.0 |        
    2240 | 2024-03-14 12:07:57 |        MASTER-Tunka | (09h 46m 47.30s , +19d 34m 19.2s) |   C |    60 | 13.9 |        
    2319 | 2024-03-14 12:09:16 |        MASTER-Tunka | (09h 47m 39.13s , +17d 41m 52.7s) |   C |    60 | 14.3 |        
    2636 | 2024-03-14 12:14:33 |        MASTER-Tunka | (09h 54m 28.40s , +19d 34m 23.7s) |   C |    60 | 13.9 |        
    2795 | 2024-03-14 12:17:12 |        MASTER-Tunka | (09h 54m 09.79s , +23d 22m 51.5s) |   C |    60 | 13.2 |        
    2874 | 2024-03-14 12:18:31 |        MASTER-Tunka | (10h 02m 58.51s , +23d 23m 58.1s) |   C |    60 | 13.7 |        
    2954 | 2024-03-14 12:19:51 |        MASTER-Tunka | (09h 36m 11.27s , +13d 55m 07.8s) |   C |    60 | 14.0 |        
    3270 | 2024-03-14 12:25:07 |        MASTER-Tunka | (09h 47m 39.73s , +17d 42m 53.7s) |   C |    60 | 14.1 |        
    3349 | 2024-03-14 12:26:26 |        MASTER-Tunka | (09h 56m 05.28s , +17d 41m 17.0s) |   C |    60 | 14.4 |        
    3588 | 2024-03-14 12:30:25 |        MASTER-Tunka | (09h 54m 28.29s , +19d 37m 08.1s) |   C |    60 | 14.4 |        
    3746 | 2024-03-14 12:33:03 |        MASTER-Tunka | (09h 54m 06.55s , +23d 23m 18.0s) |   C |    60 | 15.5 |        
    3825 | 2024-03-14 12:34:22 |        MASTER-Tunka | (10h 02m 58.89s , +23d 23m 11.0s) |   C |    60 | 13.8 |        
    3905 | 2024-03-14 12:35:42 |        MASTER-Tunka | (09h 36m 15.10s , +13d 55m 44.7s) |   C |    60 | 14.8 |        
    4063 | 2024-03-14 12:38:20 |        MASTER-Tunka | (09h 38m 21.67s , +19d 37m 46.3s) |   C |    60 | 14.8 |        
    4142 | 2024-03-14 12:39:39 |        MASTER-Tunka | (09h 46m 48.16s , +19d 36m 46.6s) |   C |    60 | 21.0 |        
Filter C is a clear (unfiltred) band. 


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