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GCN Circular 24869

Subject
Fermi trigger No 582748289 Global MASTER-Net observations report
Date
2019-06-20T22:46:08Z (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-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 GRB190620.77 (trigger No 582748289,  3h  5m 52.01s , -74d 52m 59.88s, R=26.9167) errorbox  13896 sec after trigger time at 2019-06-20 22:23:01 UT, with upper limit up to  18.5 mag. The observations began at zenit distance = 70 deg. The sun  altitude  is -80.6 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=1055710

We obtain a following upper limits.  

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

   13987 | 2019-06-20 22:23:01 |         MASTER-SAAO | ( 10h 45m 15.28s , -75d 55m 43.74s) |   C |   180 | 18.0 |        
   14207 | 2019-06-20 22:26:41 |         MASTER-SAAO | (  9h 56m 57.80s , -77d 56m 20.93s) |   C |   180 | 18.4 |        
   14426 | 2019-06-20 22:30:20 |         MASTER-SAAO | ( 11h 51m 12.67s , -75d 54m 24.14s) |   C |   180 | 18.3 |        
   14696 | 2019-06-20 22:34:50 |         MASTER-SAAO | ( 10h 45m 12.29s , -75d 55m 28.20s) |   C |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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