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GCN Circular 24781

Subject
Fermi trigger No 581889628 Global MASTER-Net observations report
Date
2019-06-10T21:31:11Z (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-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 GRB190610.83 (trigger No 581889628, 20h 59m 19.20s , -15d 55m 48.00s, R=11.23) errorbox  1363 sec after trigger time at 2019-06-10 20:23:06 UT, with upper limit up to  18.3 mag. The observations began at zenit distance = 82 deg. The sun  altitude  is -58.8 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=1044830

We obtain a following upper limits.  

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

    1393 | 2019-06-10 20:23:06 |         MASTER-SAAO | ( 20h 23m 47.02s , -18d  1m 41.23s) |   C |    60 | 17.6 |        
    1625 | 2019-06-10 20:26:58 |         MASTER-SAAO | ( 20h 21m 31.53s , -20d  1m 31.69s) |   C |    60 | 18.1 |        
    1721 | 2019-06-10 20:28:33 |         MASTER-SAAO | ( 20h 23m 47.60s , -18d  1m 31.28s) |   C |    60 | 18.0 |        
    1845 | 2019-06-10 20:30:37 |         MASTER-SAAO | ( 20h 32m 11.91s , -18d  1m 24.77s) |   C |    60 | 17.7 |        
    1943 | 2019-06-10 20:32:15 |         MASTER-SAAO | ( 20h 21m 31.84s , -20d  1m 01.74s) |   C |    60 | 18.3 |        
    2040 | 2019-06-10 20:33:52 |         MASTER-SAAO | ( 20h 30m 02.25s , -20d  1m 37.21s) |   C |    60 | 18.1 |        
    2137 | 2019-06-10 20:35:29 |         MASTER-SAAO | ( 20h 32m 12.17s , -18d  1m 39.51s) |   C |    60 | 17.9 |        
    2234 | 2019-06-10 20:37:07 |         MASTER-SAAO | ( 20h 38m 33.48s , -20d  1m 31.09s) |   C |    60 | 18.0 |        
    2333 | 2019-06-10 20:38:46 |         MASTER-SAAO | ( 20h 40m 36.96s , -18d  1m 53.36s) |   C |    60 | 17.7 |        
    2442 | 2019-06-10 20:40:34 |         MASTER-SAAO | ( 20h 30m 04.07s , -20d  1m 11.43s) |   C |    60 | 18.2 |        
    2980 | 2019-06-10 20:49:32 |         MASTER-SAAO | ( 20h 39m 00.46s , -20d  1m 46.36s) |   C |    60 | 18.3 |        
    3077 | 2019-06-10 20:51:09 |         MASTER-SAAO | ( 20h 47m 04.70s , -20d  1m 39.43s) |   C |    60 | 18.2 |        
    3174 | 2019-06-10 20:52:47 |         MASTER-SAAO | ( 20h 40m 35.31s , -18d  1m 24.28s) |   C |    60 | 18.3 |        
    3268 | 2019-06-10 20:54:21 |         MASTER-SAAO | ( 20h 48m 59.64s , -18d  1m 58.87s) |   C |    60 | 18.1 |        
    3366 | 2019-06-10 20:55:58 |         MASTER-SAAO | ( 20h 57m 25.80s , -18d  1m 52.73s) |   C |    60 | 17.8 |        
    3462 | 2019-06-10 20:57:35 |         MASTER-SAAO | ( 20h 47m 03.73s , -20d  1m 32.52s) |   C |    60 | 18.3 |        
    3560 | 2019-06-10 20:59:13 |         MASTER-SAAO | ( 20h 55m 35.96s , -20d  2m 07.79s) |   C |    60 | 18.2 |        
    3657 | 2019-06-10 21:00:49 |         MASTER-SAAO | ( 20h 49m 01.50s , -18d  1m 33.33s) |   C |    60 | 18.2 |        
    3758 | 2019-06-10 21:02:31 |         MASTER-SAAO | ( 20h 57m 24.72s , -18d  1m 47.82s) |   C |    60 | 18.0 |        
    3855 | 2019-06-10 21:04:08 |         MASTER-SAAO | ( 21h  5m 49.42s , -18d  2m 22.23s) |   C |    60 | 17.9 |        
    3954 | 2019-06-10 21:05:47 |         MASTER-SAAO | ( 20h 55m 36.34s , -20d  2m 02.53s) |   C |    60 | 18.2 |        
    4050 | 2019-06-10 21:07:23 |         MASTER-SAAO | ( 21h  4m 07.13s , -20d  1m 57.09s) |   C |    60 | 18.1 |        
    4149 | 2019-06-10 21:09:02 |         MASTER-SAAO | ( 21h  0m 43.56s , -16d  2m 08.69s) |   C |    60 | 17.8 |        
    4247 | 2019-06-10 21:10:39 |         MASTER-SAAO | ( 21h  5m 50.80s , -18d  2m 17.14s) |   C |    60 | 18.1 |        
    4346 | 2019-06-10 21:12:19 |         MASTER-SAAO | ( 21h  5m 29.62s , -14d  1m 54.00s) |   C |    60 | 17.6 |        
    4639 | 2019-06-10 21:17:12 |         MASTER-SAAO | ( 21h  9m 04.51s , -16d  1m 57.71s) |   C |    60 | 17.9 |        
Filter C is a clear (unfiltred) band. 


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