[vsnet-grb-info 23044] Fermi trigger No 585621841 Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  25143
SUBJECT: Fermi  trigger No 585621841 Global MASTER-Net observations report 
DATE:    19/07/24 01:31:18 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 GRB190724.03 (trigger No 585621841,  3h 36m 07.20s , + 2d 48m 00.00s, R=4.07) errorbox  40 sec after notice time and 68 sec after trigger time at 2019-07-24 00:45:05 UT, with upper limit up to  16.8 mag. Observations started at twilight.  The observations began at zenit distance = 72 deg. The sun  altitude  is -14.4 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=1083686

We obtain a following upper limits.  

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

      74 | 2019-07-24 00:45:05 |      MASTER-Tavrida | (  3h 36m 30.35s , + 2d 43m 33.13s) |   C |    10 | 15.9 |        
     133 | 2019-07-24 00:45:59 |      MASTER-Tavrida | (  3h 36m 30.32s , + 2d 43m 30.04s) |   C |    20 | 16.2 |        
     208 | 2019-07-24 00:47:04 |      MASTER-Tavrida | (  3h 36m 30.33s , + 2d 43m 27.52s) |   C |    40 | 16.6 |        
     297 | 2019-07-24 00:48:28 |      MASTER-Tavrida | (  3h 36m 30.33s , + 2d 43m 25.38s) |   C |    50 | 16.8 |        
Filter C is a clear (unfiltred) band. 


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