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GCN Circular 36611

Subject
Fermi GRB 240603C: Global MASTER-Net observations report
Date
2024-06-04T02:15:47Z (a month 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 GRB 240603C ( Fermi GBM team, GCN 36606) errorbox  36663 sec after notice time and 36697 sec after trigger time at 2024-06-03 20:20:48 UT, with upper limit up to  17.0 mag. The observations began at zenith distance = 80 deg. The sun  altitude  is -23.7 deg. 

The galactic latitude b = -9 deg., longitude l = 357 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2481031

We obtain a following upper limits.  

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

   36727 | 2024-06-03 20:20:48 |   MASTER-Kislovodsk | (18h 05m 53.45s , -31d 17m 22.9s) |   C |    60 | 12.4 |        
   37786 | 2024-06-03 20:38:27 |   MASTER-Kislovodsk | (18h 05m 51.35s , -31d 17m 42.3s) |   C |    60 | 12.8 |        
   38450 | 2024-06-03 20:49:31 |   MASTER-Kislovodsk | (18h 05m 40.34s , -32d 47m 16.0s) |   C |    60 | 16.0 |        
   38450 | 2024-06-03 20:49:31 |   MASTER-Kislovodsk | (18h 10m 37.44s , -33d 11m 40.5s) |   C |    60 | 13.1 |        
   38712 | 2024-06-03 20:53:52 |   MASTER-Kislovodsk | (18h 06m 02.06s , -31d 16m 01.3s) |   C |    60 | 12.7 |        
   39621 | 2024-06-03 21:09:02 |   MASTER-Kislovodsk | (17h 52m 28.72s , -33d 11m 03.1s) |   C |    60 | 16.3 |        
   39702 | 2024-06-03 21:10:22 |   MASTER-Kislovodsk | (18h 05m 41.56s , -32d 46m 34.6s) |   C |    60 | 16.0 |        
   39702 | 2024-06-03 21:10:22 |   MASTER-Kislovodsk | (18h 10m 39.85s , -33d 10m 57.6s) |   C |    60 | 16.6 |        
   40116 | 2024-06-03 21:17:17 |   MASTER-Kislovodsk | (17h 58m 10.68s , -35d 03m 04.2s) |   C |    60 | 16.1 |        
   40117 | 2024-06-03 21:17:17 |   MASTER-Kislovodsk | (17h 53m 05.94s , -34d 38m 45.9s) |   C |    60 | 15.6 |        
   40197 | 2024-06-03 21:18:37 |   MASTER-Kislovodsk | (18h 23m 49.41s , -32d 46m 10.0s) |   C |    60 | 16.1 |        
   40197 | 2024-06-03 21:18:37 |   MASTER-Kislovodsk | (18h 28m 47.35s , -33d 10m 29.6s) |   C |    60 | 16.6 |        
   40678 | 2024-06-03 21:26:39 |   MASTER-Kislovodsk | (18h 05m 38.20s , -32d 45m 53.0s) |   C |    60 | 16.0 |        
   40678 | 2024-06-03 21:26:39 |   MASTER-Kislovodsk | (18h 10m 38.00s , -33d 10m 17.7s) |   C |    60 | 16.5 |        
   41000 | 2024-06-03 21:32:00 |   MASTER-Kislovodsk | (18h 11m 40.72s , -34d 40m 20.2s) |   C |    60 | 15.9 |        
   41000 | 2024-06-03 21:32:00 |   MASTER-Kislovodsk | (18h 16m 46.27s , -35d 04m 45.9s) |   C |    60 | 16.5 |        
   41173 | 2024-06-03 21:34:54 |   MASTER-Kislovodsk | (17h 58m 15.57s , -35d 04m 30.4s) |   C |    60 | 16.4 |        
   41173 | 2024-06-03 21:34:54 |   MASTER-Kislovodsk | (17h 53m 10.05s , -34d 40m 11.3s) |   C |    60 | 15.8 |        
   41253 | 2024-06-03 21:36:14 |   MASTER-Kislovodsk | (18h 23m 50.39s , -32d 45m 07.5s) |   C |    60 | 16.3 |        
   41253 | 2024-06-03 21:36:14 |   MASTER-Kislovodsk | (18h 28m 49.19s , -33d 09m 27.3s) |   C |    60 | 16.8 |        
   41936 | 2024-06-03 21:47:37 |   MASTER-Kislovodsk | (18h 16m 49.44s , -35d 02m 53.5s) |   C |    60 | 16.6 |        
   41937 | 2024-06-03 21:47:38 |   MASTER-Kislovodsk | (18h 11m 43.85s , -34d 38m 41.2s) |   C |    60 | 16.0 |        
   42121 | 2024-06-03 21:50:42 |   MASTER-Kislovodsk | (17h 53m 08.02s , -34d 38m 34.2s) |   C |    60 | 15.9 |        
   42121 | 2024-06-03 21:50:42 |   MASTER-Kislovodsk | (17h 58m 14.06s , -35d 02m 42.3s) |   C |    60 | 16.5 |        
   42201 | 2024-06-03 21:52:02 |   MASTER-Kislovodsk | (18h 23m 52.66s , -32d 45m 48.4s) |   C |    60 | 16.4 |        
   42201 | 2024-06-03 21:52:02 |   MASTER-Kislovodsk | (18h 28m 52.29s , -33d 09m 57.2s) |   C |    60 | 17.0 |        
   42991 | 2024-06-03 22:05:11 |   MASTER-Kislovodsk | (18h 11m 39.81s , -34d 41m 32.4s) |   C |    60 | 16.1 |        
   42991 | 2024-06-03 22:05:11 |   MASTER-Kislovodsk | (18h 16m 46.13s , -35d 05m 35.8s) |   C |    60 | 16.6 |        
   43167 | 2024-06-03 22:08:08 |   MASTER-Kislovodsk | (18h 30m 13.14s , -34d 38m 49.1s) |   C |    60 | 16.4 |        
Filter C is a clear (unfiltred) band. 


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


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