[vsnet-grb-info 24190] LIGO/Virgo S191124be: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26289
SUBJECT: LIGO/Virgo S191124be: Global MASTER-Net observations report 
DATE:    19/11/24 11:08:34 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-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the LIGO/Virgo S191124be errorbox  1625 sec after trigger time at 2019-11-24 10:26:23 UT, with upper limit up to  18.5 mag. Observations started at twilight.  The observations began at zenith distance = 42 deg. The sun  altitude  is -11.7 deg. 

MASTER-Amur robotic telescope  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the LIGO/Virgo S191124be errorbox  1630 sec after trigger time at 2019-11-24 10:26:28 UT, with upper limit up to  18.0 mag. The observations began at zenith distance = 57 deg. The sun  altitude  is -26.5 deg. 

The galactic latitude b = 38 deg., longitude l = 76 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=10937

We obtain a following upper limits.  

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

    1715 | 2019-11-24 10:26:23 |        MASTER-Tunka | (16h 57m 57.68s , +49d 37m 57.3s) |  P| |   180 | 18.0 |        
    1660 | 2019-11-24 10:26:28 |         MASTER-Amur | (16h 49m 12.48s , +49d 13m 14.4s) |   C |    60 | 18.0 |        
    1740 | 2019-11-24 10:27:47 |         MASTER-Amur | (16h 49m 08.75s , +49d 12m 12.7s) |   C |    60 | 18.0 |        
    1819 | 2019-11-24 10:29:07 |         MASTER-Amur | (16h 49m 15.58s , +49d 12m 37.4s) |   C |    60 | 18.0 |        
    1915 | 2019-11-24 10:29:42 |        MASTER-Tunka | (16h 57m 57.19s , +49d 36m 59.9s) |  P| |   180 | 18.1 |        
    1899 | 2019-11-24 10:30:26 |         MASTER-Amur | (16h 49m 12.59s , +49d 13m 42.8s) |   C |    60 | 18.0 |        
    2114 | 2019-11-24 10:33:02 |        MASTER-Tunka | (16h 57m 59.03s , +49d 38m 28.7s) |  P| |   180 | 18.2 |        
    3452 | 2019-11-24 10:55:20 |        MASTER-Tunka | (16h 57m 56.59s , +49d 37m 12.0s) |  P| |   180 | 18.4 |        
    3652 | 2019-11-24 10:58:39 |        MASTER-Tunka | (16h 57m 53.74s , +49d 38m 10.0s) |  P| |   180 | 18.5 |        
Filter C is a clear (unfiltred) band. 


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