[vsnet-grb-info 23169] Fermi trigger No 586638042 Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  25268
SUBJECT: Fermi  trigger No 586638042 Global MASTER-Net observations report 
DATE:    19/08/04 22:31:15 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 
(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-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB190804.79 (trigger No 586638042,  4h 20m 48.00s , +44d  5m 24.00s, R=3.75) errorbox  2734 sec after notice time and 2764 sec after trigger time at 2019-08-04 19:46:41 UT, with upper limit up to  17.2 mag. The observations began at zenit distance = 80 deg. The sun  altitude  is -22.7 deg. 

The galactic latitude b = -60 deg., longitude l = 98 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1096155

We obtain a following upper limits.  

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

    2794 | 2019-08-04 19:46:41 |      MASTER-Tavrida | (  3h 58m 22.81s , +47d 47m 47.64s) |   C |    60 | 17.0 |        
    3519 | 2019-08-04 19:58:46 |      MASTER-Tavrida | (  3h 50m 42.70s , +46d  1m 44.73s) |   C |    60 | 17.1 |        
    3893 | 2019-08-04 20:05:00 |      MASTER-Tavrida | (  3h 50m 42.97s , +46d  1m 30.15s) |   C |    60 | 16.1 |        
    3995 | 2019-08-04 20:06:41 |      MASTER-Tavrida | (  3h 50m 43.17s , +46d  1m 36.14s) |   C |    60 | 17.1 |        
    4216 | 2019-08-04 20:10:22 |      MASTER-Tavrida | (  4h 22m 16.76s , +47d 47m 58.63s) |   C |    60 | 16.2 |        
    4538 | 2019-08-04 20:15:44 |      MASTER-Tavrida | (  4h 23m 22.36s , +48d  3m 20.60s) |   C |    60 | 17.2 |        
    4538 | 2019-08-04 20:15:44 |      MASTER-Tavrida | (  4h 21m 35.54s , +48d  0m 37.48s) |   C |    60 | 12.0 |        
    4750 | 2019-08-04 20:19:16 |      MASTER-Tavrida | (  4h 13m 43.23s , +46d  2m 05.19s) |   C |    60 | 17.0 |        
    4750 | 2019-08-04 20:19:16 |      MASTER-Tavrida | (  4h 12m 00.18s , +45d 59m 21.35s) |   C |    60 | 16.6 |        
Filter C is a clear (unfiltred) band. 


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