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GCN Circular 28432

Subject
Fermi GRB 200916A: Global MASTER-Net observations report
Date
2020-09-16T20:15:35Z (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,  D. Cheryasov
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

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 200916A ( Fermi GBM team, GCN 28431Loading...
 
 ) errorbox  40 sec after notice time and 52 sec after trigger time at 2020-09-16 19:29:32 UT, with upper limit up to  17.7 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -37.6 deg. 

The galactic latitude b = -54 deg., longitude l = 179 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1443073

We obtain a following upper limits.  

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

      58 | 2020-09-16 19:29:32 |         MASTER-SAAO | (02h 12m 36.56s , -05d 40m 53.8s) |   C |    10 | 16.7 |        
      93 | 2020-09-16 19:30:02 |         MASTER-SAAO | (02h 12m 42.52s , -05d 40m 30.0s) |   C |    20 | 17.5 |        
     132 | 2020-09-16 19:30:42 |         MASTER-SAAO | (02h 12m 39.48s , -05d 39m 05.4s) |   C |    20 | 17.5 |        
     177 | 2020-09-16 19:31:21 |         MASTER-SAAO | (02h 12m 39.15s , -05d 40m 39.6s) |   C |    30 | 17.7 |        
     231 | 2020-09-16 19:32:11 |         MASTER-SAAO | (02h 12m 42.72s , -05d 39m 20.7s) |   C |    40 | 17.7 |        
     296 | 2020-09-16 19:33:10 |         MASTER-SAAO | (02h 12m 35.54s , -05d 39m 57.2s) |   C |    50 | 16.5 |        
     375 | 2020-09-16 19:34:20 |         MASTER-SAAO | (02h 14m 44.42s , -05d 38m 54.0s) |   C |    70 | 17.0 |        
    1734 | 2020-09-16 19:56:04 |         MASTER-SAAO | (02h 14m 46.30s , -05d 00m 42.7s) |   C |   180 | 17.5 |        
    1934 | 2020-09-16 19:59:23 |         MASTER-SAAO | (02h 14m 56.05s , -05d 01m 39.7s) |   C |   180 | 16.1 |        
    2134 | 2020-09-16 20:02:43 |         MASTER-SAAO | (02h 22m 52.09s , -05d 02m 38.3s) |   C |   180 | 16.3 |        
Filter C is a clear (unfiltred) band. 


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