[vsnet-grb-info 26160] Fermi trigger No 619487843: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28260
SUBJECT: Fermi  trigger No 619487843: Global MASTER-Net observations report 
DATE:    20/08/19 00:30:35 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),

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-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 GRB200818.99 (trigger No 619487843,13h 50m 26.40s , +22d 07m 12.0s, R=11.79) errorbox  448 sec after notice time and 458 sec after trigger time at 2020-08-19 00:04:57 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 73 deg. The sun  altitude  is -24.9 deg. 

The galactic latitude b = 75 deg., longitude l = 16 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1422310

We obtain a following upper limits.  

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

     489 | 2020-08-19 00:04:57 |         MASTER-OAFA | (14h 08m 54.57s , +25d 22m 49.4s) |   C |    60 | 17.9 |        
     569 | 2020-08-19 00:06:16 |         MASTER-OAFA | (14h 22m 35.81s , +29d 22m 39.9s) |   C |    60 | 17.8 |        
     648 | 2020-08-19 00:07:36 |         MASTER-OAFA | (14h 24m 06.58s , +27d 23m 37.4s) |   C |    60 | 17.8 |        
     728 | 2020-08-19 00:08:56 |         MASTER-OAFA | (14h 12m 41.98s , +23d 23m 44.0s) |   C |    60 | 17.0 |        
     808 | 2020-08-19 00:10:16 |         MASTER-OAFA | (14h 08m 48.51s , +25d 22m 39.5s) |   C |    60 | 15.1 |        
     888 | 2020-08-19 00:11:36 |         MASTER-OAFA | (14h 17m 48.70s , +25d 22m 55.9s) |   C |    60 | 16.3 |        
     967 | 2020-08-19 00:12:55 |         MASTER-OAFA | (14h 22m 35.47s , +29d 24m 17.4s) |   C |    60 | 16.9 |        
    1047 | 2020-08-19 00:14:15 |         MASTER-OAFA | (14h 31m 50.37s , +29d 22m 40.9s) |   C |    60 | 17.6 |        
    1130 | 2020-08-19 00:15:38 |         MASTER-OAFA | (14h 24m 11.92s , +27d 24m 06.6s) |   C |    60 | 17.3 |        
    1210 | 2020-08-19 00:16:58 |         MASTER-OAFA | (14h 33m 09.17s , +27d 23m 31.6s) |   C |    60 | 17.4 |        
    1290 | 2020-08-19 00:18:17 |         MASTER-OAFA | (14h 12m 34.68s , +23d 24m 39.7s) |   C |    60 | 17.9 |        
    1369 | 2020-08-19 00:19:37 |         MASTER-OAFA | (14h 21m 28.45s , +23d 23m 37.3s) |   C |    60 | 17.9 |        
    1449 | 2020-08-19 00:20:57 |         MASTER-OAFA | (14h 17m 42.85s , +25d 22m 33.0s) |   C |    60 | 17.8 |        
    1528 | 2020-08-19 00:22:16 |         MASTER-OAFA | (14h 31m 52.34s , +29d 22m 52.4s) |   C |    60 | 17.8 |        
Filter C is a clear (unfiltred) band. 


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