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GCN Circular 35732

Subject
Fermi trigger No 729703985: Global MASTER-Net observations report
Date
2024-02-15T17:31:18Z (2 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 GRB240215.65 (trigger No 729703985,09h 15m 43.20s , -07d 10m 48.0s, R=11.87) errorbox  274 sec after notice time and 311 sec after trigger time at 2024-02-15 15:38:11 UT, with upper limit up to  19.4 mag. The observations began at zenith distance = 60 deg. The sun  altitude  is -46.5 deg. 

The galactic latitude b = 28 deg., longitude l = 239 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2379234

We obtain a following upper limits.  

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

     342 | 2024-02-15 15:38:11 |        MASTER-Tunka | (09h 09m 19.71s , -08d 04m 28.2s) |   C |    60 | 19.4 |        
     414 | 2024-02-15 15:39:24 |        MASTER-Tunka | (08h 56m 54.44s , -09d 58m 01.1s) |   C |    60 | 19.4 |        
     648 | 2024-02-15 15:43:18 |        MASTER-Tunka | (09h 05m 02.38s , -09d 58m 57.3s) |   C |    60 | 19.2 |        
     806 | 2024-02-15 15:45:56 |        MASTER-Tunka | (09h 07m 03.13s , -06d 10m 56.9s) |   C |    60 | 18.8 |        
     878 | 2024-02-15 15:47:07 |        MASTER-Tunka | (09h 15m 00.37s , -06d 12m 04.6s) |   C |    60 | 18.7 |        
     951 | 2024-02-15 15:48:21 |        MASTER-Tunka | (09h 12m 17.52s , -09d 58m 00.1s) |   C |    60 | 18.9 |        
    1022 | 2024-02-15 15:49:32 |        MASTER-Tunka | (09h 20m 24.98s , -09d 59m 44.4s) |   C |    60 | 18.9 |        
Filter C is a clear (unfiltred) band. 


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


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