[vsnet-grb-info 26290] Fermi GRB 200907C: Global MASTER-Net observations report

GCN Circulars gcncirc at capella2.gsfc.nasa.gov
Tue Sep 8 09:11:27 JST 2020 

TITLE:   GCN CIRCULAR
NUMBER:  28390
SUBJECT: Fermi GRB 200907C: Global MASTER-Net observations report 
DATE:    20/09/08 00:08:43 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-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB 200907C ( Fermi GBM team, GCN 28389) errorbox 69 sec after trigger time at 2020-09-07 22:58:37 UT, with upper limit up to  18.5 mag. Observations started at twilight.  The observations began at zenith distance = 67 deg. The sun  altitude  is -8.5 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 200907C errorbox  109 sec after notice time and 211 sec after trigger time at 2020-09-07 23:00:59 UT, with upper limit up to  20.3 mag. The observations began at zenith distance = 48 deg. The sun  altitude  is -63.1 deg. 

The galactic latitude b = -38 deg., longitude l = 297 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1435444

We obtain a following upper limits.  

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

      74 | 2020-09-07 22:58:37 |         MASTER-OAFA | (01h 55m 11.92s , -77d 24m 44.7s) |   C |    10 | 15.8 |        
     179 | 2020-09-07 23:00:12 |         MASTER-OAFA | (01h 55m 35.91s , -76d 03m 45.6s) |   C |    30 | 16.8 |        
     231 | 2020-09-07 23:00:59 |         MASTER-SAAO | (02h 03m 44.94s , -77d 08m 12.6s) |   C |    40 | 19.3 |        
     231 | 2020-09-07 23:00:59 |         MASTER-SAAO | (02h 35m 28.31s , -77d 06m 11.2s) |   C |    40 | 19.5 |        
     255 | 2020-09-07 23:01:18 |         MASTER-OAFA | (02h 17m 07.16s , -77d 51m 43.1s) |   C |    50 | 16.2 |        
     296 | 2020-09-07 23:01:59 |         MASTER-SAAO | (02h 03m 51.69s , -77d 09m 14.7s) |   C |    50 | 19.5 |        
     296 | 2020-09-07 23:01:59 |         MASTER-SAAO | (02h 35m 37.20s , -77d 07m 12.5s) |   C |    50 | 19.6 |        
     342 | 2020-09-07 23:02:39 |         MASTER-OAFA | (02h 17m 29.35s , -76d 30m 31.9s) |   C |    60 | 17.1 |        
     375 | 2020-09-07 23:03:08 |         MASTER-SAAO | (02h 03m 45.07s , -77d 10m 17.2s) |   C |    70 | 19.6 |        
     375 | 2020-09-07 23:03:08 |         MASTER-SAAO | (02h 35m 32.76s , -77d 08m 14.1s) |   C |    70 | 19.7 |        
     441 | 2020-09-07 23:04:09 |         MASTER-OAFA | (02h 17m 11.19s , -77d 52m 09.7s) |   C |    80 | 16.9 |        
     486 | 2020-09-07 23:04:48 |         MASTER-SAAO | (02h 32m 06.95s , -77d 06m 18.4s) |   C |    90 | 19.7 |        
     486 | 2020-09-07 23:04:48 |         MASTER-SAAO | (02h 00m 23.44s , -77d 06m 45.2s) |   C |    90 | 19.7 |        
     563 | 2020-09-07 23:06:00 |         MASTER-OAFA | (02h 17m 26.50s , -76d 29m 44.2s) |   C |   100 | 17.6 |        
     605 | 2020-09-07 23:06:38 |         MASTER-SAAO | (02h 32m 02.21s , -77d 04m 44.4s) |   C |   110 | 19.9 |        
     605 | 2020-09-07 23:06:38 |         MASTER-SAAO | (02h 00m 23.10s , -77d 05m 11.5s) |   C |   110 | 19.9 |        
     707 | 2020-09-07 23:08:09 |         MASTER-OAFA | (02h 17m 47.88s , -79d 11m 04.3s) |   C |   130 | 17.1 |        
     745 | 2020-09-07 23:08:47 |         MASTER-SAAO | (02h 34m 29.36s , -78d 25m 33.1s) |   C |   130 | 20.1 |        
     745 | 2020-09-07 23:08:47 |         MASTER-SAAO | (01h 59m 12.63s , -78d 25m 58.6s) |   C |   130 | 20.1 |        
     884 | 2020-09-07 23:10:51 |         MASTER-OAFA | (02h 18m 18.57s , -77d 48m 52.0s) |   C |   160 | 18.0 |        
     909 | 2020-09-07 23:11:17 |         MASTER-SAAO | (02h 34m 30.87s , -78d 23m 59.1s) |   C |   160 | 20.1 |        
     909 | 2020-09-07 23:11:17 |         MASTER-SAAO | (01h 59m 18.43s , -78d 24m 25.3s) |   C |   160 | 20.3 |        
    1083 | 2020-09-07 23:14:00 |         MASTER-OAFA | (02h 17m 49.90s , -79d 12m 59.2s) |   C |   180 | 17.8 |        
    1099 | 2020-09-07 23:14:16 |         MASTER-SAAO | (02h 34m 26.50s , -78d 24m 41.3s) |   C |   180 | 20.2 |        
    1099 | 2020-09-07 23:14:16 |         MASTER-SAAO | (01h 59m 11.69s , -78d 25m 08.0s) |   C |   180 | 20.2 |        
    1298 | 2020-09-07 23:17:35 |         MASTER-OAFA | (02h 18m 17.36s , -77d 49m 41.9s) |   C |   180 | 18.5 |        
    1298 | 2020-09-07 23:17:36 |         MASTER-SAAO | (02h 34m 25.02s , -78d 23m 39.5s) |   C |   180 | 20.3 |        
    1298 | 2020-09-07 23:17:36 |         MASTER-SAAO | (01h 59m 13.37s , -78d 24m 06.7s) |   C |   180 | 20.3 |        
    1498 | 2020-09-07 23:20:55 |         MASTER-SAAO | (02h 34m 32.62s , -78d 24m 37.4s) |   C |   180 | 20.2 |        
    1498 | 2020-09-07 23:20:55 |         MASTER-SAAO | (01h 59m 18.34s , -78d 25m 04.9s) |   C |   180 | 20.3 |        
    1512 | 2020-09-07 23:21:09 |         MASTER-OAFA | (02h 17m 54.08s , -79d 11m 10.8s) |   C |   180 | 18.5 |        
    1697 | 2020-09-07 23:24:15 |         MASTER-SAAO | (02h 34m 27.96s , -78d 25m 35.1s) |   C |   180 | 20.3 |        
    1697 | 2020-09-07 23:24:15 |         MASTER-SAAO | (01h 59m 10.75s , -78d 26m 03.2s) |   C |   180 | 20.2 |        
    1728 | 2020-09-07 23:24:46 |         MASTER-OAFA | (02h 18m 14.46s , -77d 49m 22.9s) |   C |   180 | 18.5 |        
    1842 | 2020-09-07 23:27:40 |         MASTER-SAAO | (02h 25m 47.29s , -76d 02m 26.8s) |   C |    60 | 19.5 |        
    1842 | 2020-09-07 23:27:40 |         MASTER-SAAO | (01h 56m 26.65s , -76d 02m 58.5s) |   C |    60 | 19.6 |        
    1922 | 2020-09-07 23:28:59 |         MASTER-SAAO | (02h 49m 55.80s , -78d 00m 43.0s) |   C |    60 | 19.5 |        
    1922 | 2020-09-07 23:28:59 |         MASTER-SAAO | (02h 15m 51.06s , -78d 01m 13.2s) |   C |    60 | 19.7 |        
    2081 | 2020-09-07 23:31:39 |         MASTER-SAAO | (01h 32m 21.36s , -78d 01m 20.6s) |   C |    60 | 19.5 |        
    2641 | 2020-09-07 23:40:58 |         MASTER-SAAO | (02h 25m 38.90s , -76d 02m 34.7s) |   C |    60 | 19.5 |        
    2641 | 2020-09-07 23:40:58 |         MASTER-SAAO | (01h 56m 17.85s , -76d 03m 08.1s) |   C |    60 | 19.7 |        
    2721 | 2020-09-07 23:42:18 |         MASTER-SAAO | (02h 49m 56.97s , -78d 01m 56.9s) |   C |    60 | 19.6 |        
    2721 | 2020-09-07 23:42:18 |         MASTER-SAAO | (02h 15m 48.99s , -78d 02m 29.5s) |   C |    60 | 19.7 |        
    2880 | 2020-09-07 23:44:58 |         MASTER-SAAO | (01h 32m 19.62s , -78d 03m 03.1s) |   C |    60 | 19.5 |        
    2960 | 2020-09-07 23:46:17 |         MASTER-SAAO | (01h 50m 56.24s , -80d 01m 02.0s) |   C |    60 | 19.5 |        
    3130 | 2020-09-07 23:49:07 |         MASTER-SAAO | (02h 47m 32.47s , -80d 03m 50.6s) |   C |    60 | 19.6 |        
Filter C is a clear (unfiltred) band. 


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

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