Back
GCN Circular 28199

Subject
LAT GRB200803.15: Global MASTER-Net observations report
Date
2020-08-03T13:11:09Z (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) was pointed to the LAT GRB200803.15 (trigger No 200803149,20h 45m 09.60s , -63d 04m 48.0s, R=0.46) errorbox 107 sec after trigger time at 2020-08-03 03:36:13 UT, with upper limit up to  18.4 mag. The observations began at zenith distance = 54 deg. The sun  altitude  is -23.5 deg. 

The galactic latitude b = -37 deg., longitude l = 333 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1413058

We obtain a following upper limits.  

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

     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 |        
     162 | 2020-08-03 03:36:52 |         MASTER-SAAO | (20h 58m 19.46s , -62d 06m 21.5s) |   C |    30 | 17.7 |        
     162 | 2020-08-03 03:36:53 |         MASTER-SAAO | (20h 43m 16.07s , -62d 07m 01.3s) |   C |    30 | 17.5 |        
     217 | 2020-08-03 03:37:42 |         MASTER-SAAO | (20h 58m 25.16s , -62d 07m 20.7s) |   C |    40 | 17.7 |        
     217 | 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 |        
     356 | 2020-08-03 03:39:51 |         MASTER-SAAO | (20h 58m 23.73s , -62d 08m 19.8s) |   C |    60 | 18.0 |        
     356 | 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 |        
     789 | 2020-08-03 03:46:24 |         MASTER-SAAO | (20h 59m 38.20s , -62d 03m 23.4s) |   C |   140 | 18.2 |        
     789 | 2020-08-03 03:46:24 |         MASTER-SAAO | (20h 44m 36.56s , -62d 04m 02.7s) |   C |   140 | 18.1 |        
     964 | 2020-08-03 03:49:04 |         MASTER-SAAO | (20h 59m 44.87s , -62d 04m 22.3s) |   C |   170 | 18.3 |        
     964 | 2020-08-03 03:49:04 |         MASTER-SAAO | (20h 44m 42.77s , -62d 05m 01.8s) |   C |   170 | 18.1 |        
    1158 | 2020-08-03 03:52:14 |         MASTER-SAAO | (20h 59m 38.04s , -62d 05m 21.5s) |   C |   180 | 18.4 |        
    1158 | 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 |        
    1557 | 2020-08-03 03:58:52 |         MASTER-SAAO | (20h 59m 39.66s , -62d 03m 31.5s) |   C |   180 | 18.2 |        
    1557 | 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 |        
    1896 | 2020-08-03 04:05:32 |         MASTER-SAAO | (20h 46m 24.22s , -64d 02m 24.8s) |   C |    60 | 18.1 |        
    1896 | 2020-08-03 04:05:32 |         MASTER-SAAO | (20h 30m 19.82s , -64d 02m 58.5s) |   C |    60 | 18.0 |        
    2148 | 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 |        
    2387 | 2020-08-03 04:13:42 |         MASTER-SAAO | (20h 31m 48.01s , -62d 02m 08.5s) |   C |    60 | 17.8 |        
Filter C is a clear (unfiltred) band. 


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