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GCN Circular 24881

Subject
Fermi trigger No 583111521 Global MASTER-Net observations report
Date
2019-06-25T17:32:24Z (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 GRB190624.98 (trigger No 583111521,  9h 34m 48.00s , - 4d 24m 00.00s, R=28.35) errorbox  61771 sec after trigger time at 2019-06-25 16:34:47 UT, with upper limit up to  18.8 mag. Observations started at twilight.  The observations began at zenit distance = 45 deg. The sun  altitude  is -10.8 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=1056403

We obtain a following upper limits.  

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

   61862 | 2019-06-25 16:34:47 |         MASTER-SAAO | (  8h 35m 28.00s , - 3d 59m 09.06s) |   V |   180 | 17.3 |        
   62042 | 2019-06-25 16:34:47 |         MASTER-SAAO | (  8h 35m 28.00s , - 3d 59m 09.07s) |   V |   540 | 18.4 |  Coadd 
   62073 | 2019-06-25 16:38:19 |         MASTER-SAAO | (  8h 35m 27.80s , - 3d 58m 53.42s) |   C |   180 | 18.0 |        
   62231 | 2019-06-25 16:41:56 |         MASTER-SAAO | (  9h 37m 16.12s , + 8d  8m 36.67s) |   C |    60 | 17.7 |        
   62327 | 2019-06-25 16:43:33 |         MASTER-SAAO | (  9h 44m 24.29s , +12d  9m 06.10s) |   C |    60 | 18.0 |        
   62423 | 2019-06-25 16:45:09 |         MASTER-SAAO | (  9h 53m 25.43s , + 8d  9m 14.36s) |   C |    60 | 18.4 |        
   62517 | 2019-06-25 16:46:42 |         MASTER-SAAO | (  9h 56m 43.16s , +10d  9m 36.70s) |   C |    60 | 18.3 |        
   62612 | 2019-06-25 16:48:18 |         MASTER-SAAO | (  9h 37m 16.04s , + 8d  8m 47.91s) |   C |    60 | 18.2 |        
   62706 | 2019-06-25 16:49:51 |         MASTER-SAAO | (  9h 45m 20.87s , + 8d  8m 46.97s) |   C |    60 | 18.2 |        
   62862 | 2019-06-25 16:51:28 |         MASTER-SAAO | (  8h 35m 27.56s , - 3d 59m 30.76s) |   V |   180 | 18.3 |        
   63074 | 2019-06-25 16:54:59 |         MASTER-SAAO | (  8h 35m 27.45s , - 3d 59m 18.56s) |   C |   180 | 18.8 |        
   63232 | 2019-06-25 16:58:38 |         MASTER-SAAO | (  9h 44m 23.00s , +12d  8m 42.93s) |   C |    60 | 18.5 |        
   63326 | 2019-06-25 17:00:12 |         MASTER-SAAO | (  9h 52m 33.67s , +12d  8m 41.66s) |   C |    60 | 18.7 |        
   63421 | 2019-06-25 17:01:47 |         MASTER-SAAO | (  9h 53m 26.76s , + 8d  8m 48.75s) |   C |    60 | 18.7 |        
   63520 | 2019-06-25 17:03:25 |         MASTER-SAAO | ( 10h  1m 31.52s , + 8d  9m 26.27s) |   C |    60 | 18.6 |        
   63615 | 2019-06-25 17:05:01 |         MASTER-SAAO | (  9h 56m 41.92s , +10d  9m 07.71s) |   C |    60 | 18.0 |        
   63709 | 2019-06-25 17:06:34 |         MASTER-SAAO | ( 10h  4m 49.06s , +10d  9m 05.65s) |   C |    60 | 18.8 |        
   63805 | 2019-06-25 17:08:10 |         MASTER-SAAO | (  9h 37m 17.39s , + 8d  7m 55.91s) |   C |    60 | 18.5 |        
   63898 | 2019-06-25 17:09:44 |         MASTER-SAAO | (  9h 45m 22.23s , + 8d  8m 34.22s) |   C |    60 | 18.4 |        
   63993 | 2019-06-25 17:11:19 |         MASTER-SAAO | (  9h 44m 23.03s , +12d  8m 22.41s) |   C |    60 | 18.6 |        
   64087 | 2019-06-25 17:12:53 |         MASTER-SAAO | (  9h 52m 33.71s , +12d  8m 20.65s) |   C |    60 | 18.7 |        
   64182 | 2019-06-25 17:14:28 |         MASTER-SAAO | (  9h 53m 26.78s , + 8d  8m 26.88s) |   C |    60 | 18.7 |        
Filter C is a clear (unfiltred) band. 


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