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GCN Circular 25493

Subject
Fermi trigger No 588597173 Global MASTER-Net observations report
Date
2019-08-27T17:31:13Z (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-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 GRB190827.47 (trigger No 588597173, 11h 43m 14.40s , +46d 27m 00.00s, R=1) errorbox  21070 sec after trigger time at 2019-08-27 17:03:58 UT, with upper limit up to  18.6 mag. Observations started at twilight.  The observations began at zenit distance = 66 deg. The sun  altitude  is -12.5 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=1117066

We obtain a following upper limits.  

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

   21160 | 2019-08-27 17:03:58 |   MASTER-Kislovodsk | ( 11h 46m 01.77s , +44d 20m 25.37s) |   C |   180 | 17.7 |        
   21377 | 2019-08-27 17:07:35 |   MASTER-Kislovodsk | ( 11h 46m 02.25s , +44d 20m 31.35s) |   C |   180 | 18.1 |        
   21599 | 2019-08-27 17:11:17 |   MASTER-Kislovodsk | ( 11h 59m 37.51s , +45d 54m 40.50s) |   C |   180 | 18.5 |        
   21599 | 2019-08-27 17:11:17 |   MASTER-Kislovodsk | ( 11h 48m 01.71s , +46d 20m 22.99s) |   C |   180 | 18.5 |        
   21816 | 2019-08-27 17:14:54 |   MASTER-Kislovodsk | ( 11h 46m 00.87s , +44d 19m 53.84s) |   C |   180 | 18.6 |        
Filter C is a clear (unfiltred) band. 


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