[vsnet-grb-info 26303] Fermi GRB 200909A: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28403
SUBJECT: Fermi GRB 200909A: Global MASTER-Net observations report 
DATE:    20/09/09 05:19:40 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 200909A ( Fermi GBM team, GCN 28401) errorbox  43 sec after notice time and 54 sec after trigger time at 2020-09-09 04:02:16 UT, with upper limit up to  15.4 mag. Observations started at twilight.  The observations began at zenith distance = 78 deg. The sun  altitude  is -10.0 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB 200909A errorbox  78 sec after notice time and 89 sec after trigger time at 2020-09-09 04:02:51 UT, with upper limit up to  17.2 mag. The observations began at zenith distance = 11 deg. The sun  altitude  is -63.4 deg. 

The galactic latitude b = -57 deg., longitude l = 46 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1436974

We obtain a following upper limits.  

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

      59 | 2020-09-09 04:02:16 |         MASTER-SAAO | (22h 42m 59.37s , -19d 50m 01.9s) |   C |    10 | 15.1 |        
      94 | 2020-09-09 04:02:45 |         MASTER-SAAO | (22h 42m 55.65s , -19d 48m 15.1s) |   C |    20 | 15.4 |        
      99 | 2020-09-09 04:02:51 |         MASTER-OAFA | (22h 39m 23.38s , -20d 28m 57.0s) |   C |    20 | 13.1 |        
     143 | 2020-09-09 04:03:30 |         MASTER-SAAO | (22h 42m 55.72s , -19d 49m 40.7s) |   C |    30 | 14.6 |        
     139 | 2020-09-09 04:03:31 |         MASTER-OAFA | (22h 39m 22.97s , -20d 27m 57.2s) |   C |    20 | 12.1 |        
     183 | 2020-09-09 04:04:10 |         MASTER-OAFA | (22h 39m 28.01s , -20d 28m 57.3s) |   C |    30 | 13.2 |        
     193 | 2020-09-09 04:04:20 |         MASTER-SAAO | (22h 42m 58.41s , -19d 48m 30.9s) |   C |    30 | 15.2 |        
     238 | 2020-09-09 04:05:00 |         MASTER-OAFA | (22h 39m 21.89s , -20d 29m 57.9s) |   C |    40 | 13.7 |        
     302 | 2020-09-09 04:05:59 |         MASTER-OAFA | (22h 39m 28.76s , -20d 29m 34.4s) |   C |    50 | 14.5 |        
     382 | 2020-09-09 04:07:08 |         MASTER-OAFA | (22h 39m 25.88s , -20d 28m 22.2s) |   C |    70 | 15.0 |        
     466 | 2020-09-09 04:08:38 |         MASTER-OAFA | (22h 36m 37.57s , -20d 46m 37.4s) |   C |    60 | 15.6 |        
     545 | 2020-09-09 04:09:57 |         MASTER-OAFA | (22h 37m 07.72s , -18d 46m 33.2s) |   C |    60 | 16.0 |        
     655 | 2020-09-09 04:11:17 |         MASTER-OAFA | (22h 34m 10.35s , -17d 03m 07.9s) |   C |   120 | 16.6 |        
     809 | 2020-09-09 04:13:36 |         MASTER-OAFA | (22h 34m 04.21s , -17d 04m 09.3s) |   C |   150 | 16.6 |        
     994 | 2020-09-09 04:16:26 |         MASTER-OAFA | (22h 34m 09.95s , -17d 04m 09.0s) |   C |   180 | 17.2 |        
    1193 | 2020-09-09 04:19:45 |         MASTER-OAFA | (22h 34m 07.04s , -17d 02m 18.3s) |   C |   180 | 16.5 |        
    1592 | 2020-09-09 04:26:24 |         MASTER-OAFA | (22h 47m 32.69s , -18d 34m 44.7s) |   C |   180 | 17.0 |        
    1792 | 2020-09-09 04:29:44 |         MASTER-OAFA | (22h 47m 25.82s , -18d 35m 41.9s) |   C |   180 | 16.4 |        
    1991 | 2020-09-09 04:33:03 |         MASTER-OAFA | (22h 47m 26.51s , -18d 34m 43.0s) |   C |   180 | 15.0 |        
    2191 | 2020-09-09 04:36:23 |         MASTER-OAFA | (22h 47m 32.60s , -18d 35m 44.5s) |   C |   180 | 16.0 |        
Filter C is a clear (unfiltred) band. 


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