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GCN Circular 28029

Subject
Fermi GRB 200625A: Global MASTER-Net observations report
Date
2020-06-25T17:30:14Z (4 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, 
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,
D.Kuvshinov,  D. Cheryasov
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

H.Levato 
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev, O.Ershova 
(Irkutsk State University, API),

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

V. Yurkov, A. Gabovich, Yu. Sergienko 
(Blagoveschensk Educational State University)




MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 200625A ( Fermi GBM team, GCN 28028) errorbox  14507 sec after notice time and 14536 sec after trigger time at 2020-06-25 16:48:05 UT, with upper limit up to  19.6 mag. Observations started at twilight.  The observations began at zenith distance = 35 deg. The sun  altitude  is -13.4 deg. 

The galactic latitude b = 14 deg., longitude l = 260 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1389977

We obtain a following upper limits.  

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

   14567 | 2020-06-25 16:48:05 |         MASTER-SAAO | (09h 42m 15.87s , -27d 53m 20.4s) |   C |    60 | 19.3 |        
   14567 | 2020-06-25 16:48:05 |         MASTER-SAAO | (09h 34m 31.43s , -27d 54m 33.0s) |   C |    60 | 19.0 |        
   14647 | 2020-06-25 16:49:25 |         MASTER-SAAO | (09h 32m 01.48s , -25d 54m 32.3s) |   C |    60 | 19.4 |        
   14647 | 2020-06-25 16:49:25 |         MASTER-SAAO | (09h 24m 25.35s , -25d 55m 45.4s) |   C |    60 | 19.1 |        
   14727 | 2020-06-25 16:50:45 |         MASTER-SAAO | (09h 49m 43.62s , -25d 55m 02.8s) |   C |    60 | 19.4 |        
   14727 | 2020-06-25 16:50:45 |         MASTER-SAAO | (09h 42m 07.31s , -25d 56m 14.8s) |   C |    60 | 19.1 |        
   14806 | 2020-06-25 16:52:05 |         MASTER-SAAO | (09h 40m 14.87s , -23d 54m 49.1s) |   C |    60 | 19.4 |        
   14806 | 2020-06-25 16:52:05 |         MASTER-SAAO | (09h 32m 46.08s , -23d 56m 01.3s) |   C |    60 | 19.2 |        
   14886 | 2020-06-25 16:53:25 |         MASTER-SAAO | (09h 42m 17.87s , -27d 53m 21.8s) |   C |    60 | 19.5 |        
   14886 | 2020-06-25 16:53:25 |         MASTER-SAAO | (09h 34m 33.52s , -27d 54m 32.8s) |   C |    60 | 19.2 |        
   14966 | 2020-06-25 16:54:45 |         MASTER-SAAO | (09h 31m 58.93s , -25d 55m 27.3s) |   C |    60 | 19.5 |        
   14966 | 2020-06-25 16:54:45 |         MASTER-SAAO | (09h 24m 22.77s , -25d 56m 39.4s) |   C |    60 | 19.3 |        
   15046 | 2020-06-25 16:56:04 |         MASTER-SAAO | (09h 42m 12.57s , -25d 54m 28.9s) |   C |    60 | 19.3 |        
   15126 | 2020-06-25 16:57:24 |         MASTER-SAAO | (09h 40m 09.34s , -23d 54m 15.1s) |   C |    60 | 19.6 |        
   15126 | 2020-06-25 16:57:24 |         MASTER-SAAO | (09h 32m 40.58s , -23d 55m 26.8s) |   C |    60 | 19.4 |        
   15206 | 2020-06-25 16:58:44 |         MASTER-SAAO | (09h 35m 13.23s , -29d 53m 37.1s) |   C |    60 | 19.5 |        
   15206 | 2020-06-25 16:58:44 |         MASTER-SAAO | (09h 27m 19.84s , -29d 54m 47.7s) |   C |    60 | 19.3 |        
   15285 | 2020-06-25 17:00:04 |         MASTER-SAAO | (09h 24m 15.09s , -27d 54m 53.3s) |   C |    60 | 19.5 |        
   15285 | 2020-06-25 17:00:04 |         MASTER-SAAO | (09h 16m 30.81s , -27d 56m 04.7s) |   C |    60 | 19.3 |        
   15577 | 2020-06-25 17:04:56 |         MASTER-SAAO | (09h 35m 20.29s , -29d 55m 08.6s) |   C |    60 | 19.5 |        
   15577 | 2020-06-25 17:04:56 |         MASTER-SAAO | (09h 27m 27.09s , -29d 56m 16.9s) |   C |    60 | 19.4 |        
   15657 | 2020-06-25 17:06:16 |         MASTER-SAAO | (09h 24m 12.21s , -27d 54m 16.1s) |   C |    60 | 19.6 |        
   15657 | 2020-06-25 17:06:16 |         MASTER-SAAO | (09h 16m 28.28s , -27d 55m 25.3s) |   C |    60 | 19.3 |        
   15737 | 2020-06-25 17:07:35 |         MASTER-SAAO | (09h 53m 43.70s , -29d 54m 39.3s) |   C |    60 | 19.6 |        
   15737 | 2020-06-25 17:07:35 |         MASTER-SAAO | (09h 45m 50.32s , -29d 55m 46.5s) |   C |    60 | 19.5 |        
   15817 | 2020-06-25 17:08:55 |         MASTER-SAAO | (10h 00m 26.93s , -27d 53m 20.6s) |   C |    60 | 19.6 |        
   15817 | 2020-06-25 17:08:55 |         MASTER-SAAO | (09h 52m 42.64s , -27d 54m 28.0s) |   C |    60 | 19.4 |        
   15896 | 2020-06-25 17:10:15 |         MASTER-SAAO | (09h 57m 37.66s , -23d 53m 52.2s) |   C |    60 | 19.5 |        
   15896 | 2020-06-25 17:10:15 |         MASTER-SAAO | (09h 50m 08.91s , -23d 55m 00.8s) |   C |    60 | 19.4 |        
   15977 | 2020-06-25 17:11:35 |         MASTER-SAAO | (09h 31m 34.82s , -21d 53m 30.1s) |   C |    60 | 19.6 |        
   15977 | 2020-06-25 17:11:35 |         MASTER-SAAO | (09h 24m 13.01s , -21d 54m 40.5s) |   C |    60 | 19.4 |        
   16057 | 2020-06-25 17:12:55 |         MASTER-SAAO | (09h 45m 52.65s , -29d 55m 20.0s) |   C |    60 | 19.5 |        
Filter C is a clear (unfiltred) band. 


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