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GCN Circular 24685

Subject
Fermi GRB190530.43 Global MASTER-Net observations report
Date
2019-05-30T22:31:20Z (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, 
V.Vladimirov, D. Vlasenko, 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-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB190530.43 (trigger No 580904353,  7h 47m 40.80s , +33d 57m 00.00s, R=1) errorbox  15845 sec after trigger time at 2019-05-30 14:43:13 UT, with upper limit up to  17.0 mag. Observations started at twilight.  The observations began at zenit distance = 67 deg. The sun  altitude  is -10.9 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB190530.43 errorbox  37305 sec after trigger time at 2019-05-30 20:40:53 UT, with upper limit up to  18.6 mag. Observations started at twilight.  The observations began at zenit distance = 55 deg. The sun  altitude  is -10.0 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=1034101

We obtain a following upper limits.  

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

   15875 | 2019-05-30 14:43:13 |        MASTER-Tunka | (  7h 54m 57.60s , +34d 16m 22.90s) |   C |    60 | 17.0 |        
   37335 | 2019-05-30 20:40:53 |          MASTER-IAC | (  7h 48m 30.78s , +36d  2m 17.88s) |   C |    60 | 16.1 |        
   39657 | 2019-05-30 21:19:35 |          MASTER-IAC | (  7h 48m 29.33s , +36d  1m 46.41s) |   C |    60 | 18.5 |        
   39857 | 2019-05-30 21:22:55 |          MASTER-IAC | (  7h 56m 27.73s , +34d  2m 23.67s) |   C |    60 | 18.5 |        
   40255 | 2019-05-30 21:29:33 |          MASTER-IAC | (  7h 56m 29.16s , +34d  2m 02.86s) |   C |    60 | 18.5 |        
   42339 | 2019-05-30 22:04:17 |          MASTER-IAC | (  7h 37m 09.44s , +34d  1m 36.98s) |   C |    60 | 18.6 |        
   42742 | 2019-05-30 22:10:59 |          MASTER-IAC | (  7h 37m 09.55s , +34d  1m 34.63s) |   C |    60 | 18.5 |        
   42838 | 2019-05-30 22:12:35 |          MASTER-IAC | (  7h 46m 48.61s , +34d  1m 29.99s) |   C |    60 | 18.4 |        
Filter C is a clear (unfiltred) band. 


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