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GCN Circular 25863

Subject
Fermi trigger No 591391412: Global MASTER-Net observations report
Date
2019-09-29T15:23:18Z (5 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 
(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-Amur robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB190928.81 (trigger No 591391412,16h 08m 28.008s , +53d 46m 00.12s, R=36.9667) errorbox  54320 sec after trigger time at 2019-09-29 10:28:47 UT, with upper limit up to  17.7 mag. Observations started at twilight.  The observations began at zenit distance =  9 deg. The sun  altitude  is -12.5 deg. 

MASTER-Tunka robotic telescope  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB190928.81 errorbox  69005 sec after trigger time at 2019-09-29 14:33:32 UT, with upper limit up to  18.4 mag. The observations began at zenit distance = 74 deg. The sun  altitude  is -32.7 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1152181

We obtain a following upper limits.  

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

   54410 | 2019-09-29 10:28:47 |         MASTER-Amur | (20h 05m 08.028s , +44d 10m 41.15s) |   C |   180 | 17.7 |        
   58127 | 2019-09-29 11:30:44 |         MASTER-Amur | (20h 00m 08.565s , +44d 46m 10.73s) |   C |   180 | 16.4 |        
   58338 | 2019-09-29 11:34:15 |         MASTER-Amur | (20h 00m 08.486s , +44d 46m 11.50s) |   C |   180 | 16.1 |        
   61957 | 2019-09-29 12:34:34 |         MASTER-Amur | (20h 00m 08.582s , +44d 45m 14.83s) |   C |   180 | 16.0 |        
   62169 | 2019-09-29 12:38:07 |         MASTER-Amur | (20h 00m 07.551s , +44d 45m 03.47s) |   C |   180 | 16.5 |        
   69095 | 2019-09-29 14:33:32 |        MASTER-Tunka | (11h 46m 34.477s , +52d 04m 55.30s) |   C |   180 | 18.0 |        
   69383 | 2019-09-29 14:38:20 |        MASTER-Tunka | (12h 13m 33.525s , +51d 45m 55.37s) |   C |   180 | 18.4 |        
   69383 | 2019-09-29 14:38:20 |        MASTER-Tunka | (12h 01m 48.059s , +51d 57m 00.76s) |   C |   180 | 18.2 |        
   70612 | 2019-09-29 14:58:49 |        MASTER-Tunka | (13h 02m 51.649s , +48d 17m 10.86s) |   C |   180 | 18.0 |        
   70612 | 2019-09-29 14:58:49 |        MASTER-Tunka | (13h 13m 41.777s , +48d 05m 33.77s) |   C |   180 | 17.6 |        
Filter C is a clear (unfiltred) band. 


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