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GCN Circular 28198

Subject
Fermi GRB 200803A: Global MASTER-Net observations report
Date
2020-08-03T05:30:08Z (4 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,  D. Cheryasov
(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 GRB 200803A ( Fermi GBM team, GCN 28196) errorbox  47 sec after notice time and 74 sec after trigger time at 2020-08-03 03:35:40 UT, with upper limit up to  18.4 mag. The observations began at zenith distance = 50 deg. The sun  altitude  is -23.6 deg. 

The galactic latitude b = -37 deg., longitude l = 330 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1412844

We obtain a following upper limits.  

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

      79 | 2020-08-03 03:35:40 |         MASTER-SAAO | (21h 32m 06.21s , -63d 47m 40.4s) |   C |    10 | 17.1 |        
      79 | 2020-08-03 03:35:40 |         MASTER-SAAO | (21h 16m 08.66s , -63d 48m 22.1s) |   C |    10 | 17.0 |        
     117 | 2020-08-03 03:36:13 |         MASTER-SAAO | (20h 58m 19.87s , -62d 07m 21.8s) |   C |    20 | 17.4 |        
     117 | 2020-08-03 03:36:13 |         MASTER-SAAO | (20h 43m 15.94s , -62d 08m 01.9s) |   C |    20 | 17.3 |        
     161 | 2020-08-03 03:36:52 |         MASTER-SAAO | (20h 58m 19.46s , -62d 06m 21.5s) |   C |    30 | 17.7 |        
     161 | 2020-08-03 03:36:53 |         MASTER-SAAO | (20h 43m 16.07s , -62d 07m 01.3s) |   C |    30 | 17.5 |        
     216 | 2020-08-03 03:37:42 |         MASTER-SAAO | (20h 58m 25.16s , -62d 07m 20.7s) |   C |    40 | 17.7 |        
     216 | 2020-08-03 03:37:42 |         MASTER-SAAO | (20h 43m 21.25s , -62d 08m 01.0s) |   C |    40 | 17.7 |        
     281 | 2020-08-03 03:38:42 |         MASTER-SAAO | (20h 58m 18.78s , -62d 08m 20.2s) |   C |    50 | 17.3 |        
     281 | 2020-08-03 03:38:42 |         MASTER-SAAO | (20h 43m 14.45s , -62d 09m 00.3s) |   C |    50 | 17.4 |        
     355 | 2020-08-03 03:39:51 |         MASTER-SAAO | (20h 58m 23.73s , -62d 08m 19.8s) |   C |    60 | 18.0 |        
     355 | 2020-08-03 03:39:51 |         MASTER-SAAO | (20h 43m 19.42s , -62d 08m 59.6s) |   C |    60 | 17.8 |        
     639 | 2020-08-03 03:44:05 |         MASTER-SAAO | (20h 59m 38.80s , -62d 04m 25.4s) |   C |   120 | 18.4 |        
     639 | 2020-08-03 03:44:05 |         MASTER-SAAO | (20h 44m 36.50s , -62d 05m 05.2s) |   C |   120 | 18.1 |        
     788 | 2020-08-03 03:46:24 |         MASTER-SAAO | (20h 59m 38.20s , -62d 03m 23.4s) |   C |   140 | 18.2 |        
     788 | 2020-08-03 03:46:24 |         MASTER-SAAO | (20h 44m 36.56s , -62d 04m 02.7s) |   C |   140 | 18.1 |        
     963 | 2020-08-03 03:49:04 |         MASTER-SAAO | (20h 59m 44.87s , -62d 04m 22.3s) |   C |   170 | 18.3 |        
     963 | 2020-08-03 03:49:04 |         MASTER-SAAO | (20h 44m 42.77s , -62d 05m 01.8s) |   C |   170 | 18.1 |        
    1157 | 2020-08-03 03:52:14 |         MASTER-SAAO | (20h 59m 38.04s , -62d 05m 21.5s) |   C |   180 | 18.4 |        
    1157 | 2020-08-03 03:52:14 |         MASTER-SAAO | (20h 44m 35.46s , -62d 06m 00.8s) |   C |   180 | 18.2 |        
    1357 | 2020-08-03 03:55:33 |         MASTER-SAAO | (20h 59m 42.62s , -62d 05m 06.0s) |   C |   180 | 18.3 |        
    1357 | 2020-08-03 03:55:33 |         MASTER-SAAO | (20h 44m 40.17s , -62d 05m 44.4s) |   C |   180 | 18.2 |        
    1556 | 2020-08-03 03:58:52 |         MASTER-SAAO | (20h 59m 39.66s , -62d 03m 31.5s) |   C |   180 | 18.2 |        
    1556 | 2020-08-03 03:58:52 |         MASTER-SAAO | (20h 44m 38.10s , -62d 04m 09.5s) |   C |   180 | 18.1 |        
    1756 | 2020-08-03 04:02:12 |         MASTER-SAAO | (20h 59m 39.41s , -62d 05m 01.5s) |   C |   180 | 18.2 |        
    1756 | 2020-08-03 04:02:12 |         MASTER-SAAO | (20h 44m 37.33s , -62d 05m 39.6s) |   C |   180 | 18.1 |        
    1895 | 2020-08-03 04:05:32 |         MASTER-SAAO | (20h 46m 24.22s , -64d 02m 24.8s) |   C |    60 | 18.1 |        
    1895 | 2020-08-03 04:05:32 |         MASTER-SAAO | (20h 30m 19.82s , -64d 02m 58.5s) |   C |    60 | 18.0 |        
    2147 | 2020-08-03 04:09:43 |         MASTER-SAAO | (21h 06m 07.28s , -62d 03m 57.9s) |   C |    60 | 18.0 |        
    2147 | 2020-08-03 04:09:43 |         MASTER-SAAO | (20h 51m 06.05s , -62d 04m 36.1s) |   C |    60 | 17.7 |        
    2227 | 2020-08-03 04:11:03 |         MASTER-SAAO | (20h 46m 17.65s , -64d 04m 27.7s) |   C |    60 | 18.0 |        
    2227 | 2020-08-03 04:11:03 |         MASTER-SAAO | (20h 30m 12.34s , -64d 05m 00.7s) |   C |    60 | 17.9 |        
    2307 | 2020-08-03 04:12:23 |         MASTER-SAAO | (21h 23m 04.83s , -64d 05m 11.2s) |   C |    60 | 18.1 |        
    2307 | 2020-08-03 04:12:23 |         MASTER-SAAO | (21h 06m 58.62s , -64d 05m 49.1s) |   C |    60 | 17.9 |        
    2386 | 2020-08-03 04:13:42 |         MASTER-SAAO | (20h 31m 48.01s , -62d 02m 08.5s) |   C |    60 | 17.8 |        
    2386 | 2020-08-03 04:13:42 |         MASTER-SAAO | (20h 16m 48.47s , -62d 02m 41.6s) |   C |    60 | 17.7 |        
    2466 | 2020-08-03 04:15:02 |         MASTER-SAAO | (21h 04m 46.12s , -66d 04m 21.7s) |   C |    60 | 17.9 |        
    2466 | 2020-08-03 04:15:02 |         MASTER-SAAO | (20h 47m 25.31s , -66d 04m 53.5s) |   C |    60 | 17.9 |        
    2546 | 2020-08-03 04:16:22 |         MASTER-SAAO | (21h 12m 34.17s , -58d 03m 28.1s) |   C |    60 | 17.7 |        
    2546 | 2020-08-03 04:16:22 |         MASTER-SAAO | (20h 59m 16.32s , -58d 04m 09.5s) |   C |    60 | 17.5 |        
    2626 | 2020-08-03 04:17:42 |         MASTER-SAAO | (21h 22m 58.71s , -64d 04m 09.6s) |   C |    60 | 17.9 |        
    2626 | 2020-08-03 04:17:42 |         MASTER-SAAO | (21h 06m 53.08s , -64d 04m 46.3s) |   C |    60 | 17.7 |        
    2706 | 2020-08-03 04:19:02 |         MASTER-SAAO | (20h 31m 44.41s , -62d 02m 04.4s) |   C |    60 | 17.8 |        
    2706 | 2020-08-03 04:19:02 |         MASTER-SAAO | (20h 16m 44.79s , -62d 02m 36.9s) |   C |    60 | 17.7 |        
    2785 | 2020-08-03 04:20:21 |         MASTER-SAAO | (21h 04m 49.16s , -66d 03m 46.7s) |   C |    60 | 18.0 |        
    2785 | 2020-08-03 04:20:21 |         MASTER-SAAO | (20h 47m 28.61s , -66d 04m 17.9s) |   C |    60 | 18.0 |        
    3125 | 2020-08-03 04:26:01 |         MASTER-SAAO | (21h 12m 27.15s , -58d 04m 47.1s) |   C |    60 | 17.5 |        
    3125 | 2020-08-03 04:26:01 |         MASTER-SAAO | (20h 59m 21.24s , -58d 05m 36.2s) |   C |    60 | 17.3 |        
    3374 | 2020-08-03 04:30:10 |         MASTER-SAAO | (21h 40m 16.15s , -62d 03m 51.9s) |   C |    60 | 17.4 |        
    3374 | 2020-08-03 04:30:10 |         MASTER-SAAO | (21h 25m 21.18s , -62d 04m 45.3s) |   C |    60 | 17.2 |        
    3454 | 2020-08-03 04:31:30 |         MASTER-SAAO | (20h 25m 05.24s , -66d 02m 51.4s) |   C |    60 | 17.2 |        
    3454 | 2020-08-03 04:31:30 |         MASTER-SAAO | (20h 07m 53.31s , -66d 03m 26.9s) |   C |    60 | 17.1 |        
    3709 | 2020-08-03 04:35:45 |         MASTER-SAAO | (21h 40m 10.66s , -62d 05m 20.6s) |   C |    60 | 16.8 |        
    3709 | 2020-08-03 04:35:45 |         MASTER-SAAO | (21h 25m 14.14s , -62d 06m 15.2s) |   C |    60 | 16.9 |        
    3789 | 2020-08-03 04:37:05 |         MASTER-SAAO | (20h 25m 09.83s , -66d 03m 27.2s) |   C |    60 | 16.7 |        
    3789 | 2020-08-03 04:37:05 |         MASTER-SAAO | (20h 07m 57.18s , -66d 04m 03.3s) |   C |    60 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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