[vsnet-grb-info 26299] Fermi GRB 200908A: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28399
SUBJECT: Fermi GRB 200908A: Global MASTER-Net observations report 
DATE:    20/09/08 23:00:29 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at 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 200908A ( Fermi GBM team, GCN 28396) errorbox  8 sec after notice time and 65 sec after trigger time at 2020-09-08 21:16:47 UT, with upper limit up to  18.3 mag. The observations began at zenith distance = 81 deg. The sun  altitude  is -57.5 deg. 

The galactic latitude b = -6 deg., longitude l = 294 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1436605

We obtain a following upper limits.  

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

      71 | 2020-09-08 21:16:47 |         MASTER-SAAO | (11h 55m 12.24s , -63d 29m 16.0s) |   C |    10 | 16.0 |        
      71 | 2020-09-08 21:16:47 |         MASTER-SAAO | (12h 11m 02.18s , -63d 28m 35.7s) |   C |    10 | 16.7 |        
     105 | 2020-09-08 21:17:16 |         MASTER-SAAO | (11h 55m 19.60s , -63d 30m 11.7s) |   C |    20 | 16.3 |        
     105 | 2020-09-08 21:17:16 |         MASTER-SAAO | (12h 11m 09.55s , -63d 29m 32.8s) |   C |    20 | 17.0 |        
     150 | 2020-09-08 21:17:56 |         MASTER-SAAO | (11h 55m 13.14s , -63d 31m 08.5s) |   C |    30 | 16.5 |        
     150 | 2020-09-08 21:17:56 |         MASTER-SAAO | (12h 11m 03.27s , -63d 30m 31.0s) |   C |    30 | 17.2 |        
     204 | 2020-09-08 21:18:45 |         MASTER-SAAO | (11h 55m 18.92s , -63d 30m 41.6s) |   C |    40 | 16.5 |        
     204 | 2020-09-08 21:18:45 |         MASTER-SAAO | (12h 11m 08.42s , -63d 30m 05.5s) |   C |    40 | 17.3 |        
     269 | 2020-09-08 21:19:45 |         MASTER-SAAO | (11h 55m 17.05s , -63d 29m 11.6s) |   C |    50 | 16.5 |        
     269 | 2020-09-08 21:19:45 |         MASTER-SAAO | (12h 11m 05.54s , -63d 28m 38.1s) |   C |    50 | 17.3 |        
     343 | 2020-09-08 21:20:54 |         MASTER-SAAO | (11h 55m 16.70s , -63d 30m 42.2s) |   C |    60 | 16.7 |        
     343 | 2020-09-08 21:20:54 |         MASTER-SAAO | (12h 11m 05.96s , -63d 30m 09.1s) |   C |    60 | 17.4 |        
     423 | 2020-09-08 21:22:14 |         MASTER-SAAO | (11h 53m 28.22s , -71d 52m 51.2s) |   C |    60 | 18.0 |        
     423 | 2020-09-08 21:22:14 |         MASTER-SAAO | (12h 16m 10.18s , -71d 51m 50.2s) |   C |    60 | 18.3 |        
     513 | 2020-09-08 21:23:44 |         MASTER-SAAO | (13h 02m 08.68s , -69d 51m 59.6s) |   C |    60 | 17.7 |        
     593 | 2020-09-08 21:25:04 |         MASTER-SAAO | (13h 05m 00.17s , -71d 49m 42.8s) |   C |    60 | 17.8 |        
     593 | 2020-09-08 21:25:04 |         MASTER-SAAO | (12h 42m 20.79s , -71d 50m 07.4s) |   C |    60 | 18.0 |        
Filter C is a clear (unfiltred) band. 


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