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GCN Circular 37437

Subject
EP EP240908a: Global MASTER-Net observations report
Date
2024-09-09T17:45:30Z (24 days 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) was pointed to the EP EP240908a ( EP Team et al., GCN 37432Not found
 
 
) errorbox  17611 sec after notice time and 74056 sec after trigger time at 2024-09-09 15:23:21 UT, with upper limit up to  16.7 mag. The observations began at zenith distance = 60 deg. The sun  altitude  is -29.9 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the EP EP240908a errorbox  25003 sec after notice time and 81447 sec after trigger time at 2024-09-09 17:26:32 UT, with upper limit up to  16.5 mag. The observations began at zenith distance = 78 deg. The sun  altitude  is -20.7 deg. 

The galactic latitude b = -54 deg., longitude l = 126 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2595501

We obtain a following upper limits.  

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

   74086 | 2024-09-09 15:23:21 |        MASTER-Tunka | (00h 56m 24.44s , +07d 52m 19.7s) |   C |    60 | 16.7 |  Coadd 
   81478 | 2024-09-09 17:26:32 |   MASTER-Kislovodsk | (00h 54m 07.82s , +08d 09m 35.1s) |   C |    60 | 15.3 |        
   81800 | 2024-09-09 17:31:55 |   MASTER-Kislovodsk | (00h 54m 11.89s , +08d 11m 57.0s) |   C |    60 | 16.1 |        
   82122 | 2024-09-09 17:37:17 |   MASTER-Kislovodsk | (00h 54m 05.94s , +08d 10m 11.3s) |   C |    60 | 16.5 |        
Filter C is a clear (unfiltred) band. 


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