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GCN Circular 25282

Subject
Fermi trigger No 586788607 Global MASTER-Net observations report
Date
2019-08-06T20:31:17Z (6 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-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB190806.53 (trigger No 586788607, 20h 22m 14.40s , + 0d 33m 00.00s, R=12.51) errorbox  23876 sec after trigger time at 2019-08-06 19:27:58 UT, with upper limit up to  19.1 mag. The observations began at zenit distance = 48 deg. The sun  altitude  is -21.3 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=1098349

We obtain a following upper limits.  

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

   23906 | 2019-08-06 19:27:58 |      MASTER-Tavrida | ( 20h 11m 44.01s , - 0d  4m 52.79s) |   C |    60 | 18.3 |        
   23906 | 2019-08-06 19:27:58 |      MASTER-Tavrida | ( 20h 18m 42.08s , - 0d  8m 39.19s) |   C |    60 | 18.9 |        
   24533 | 2019-08-06 19:38:24 |      MASTER-Tavrida | ( 20h 11m 40.59s , - 0d  4m 56.09s) |   C |    60 | 18.5 |        
   24533 | 2019-08-06 19:38:24 |      MASTER-Tavrida | ( 20h 18m 43.04s , - 0d  8m 42.79s) |   C |    60 | 19.0 |        
   24786 | 2019-08-06 19:42:37 |      MASTER-Tavrida | ( 20h 35m 10.95s , + 2d 16m 19.82s) |   C |    60 | 17.8 |        
   24786 | 2019-08-06 19:42:37 |      MASTER-Tavrida | ( 20h 28m 00.70s , + 2d 21m 09.06s) |   C |    60 | 17.9 |        
   24894 | 2019-08-06 19:44:25 |      MASTER-Tavrida | ( 20h 28m 00.57s , + 1d 58m 03.21s) |   C |    60 | 19.0 |        
   24894 | 2019-08-06 19:44:25 |      MASTER-Tavrida | ( 20h 35m 10.89s , + 1d 53m 12.66s) |   C |    60 | 19.1 |        
   25000 | 2019-08-06 19:46:11 |      MASTER-Tavrida | ( 20h 43m 13.33s , + 0d  1m 55.65s) |   C |    60 | 18.4 |        
Filter C is a clear (unfiltred) band. 


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