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GCN Circular 26541

Subject
LIGO/Virgo S191222n: Global MASTER-Net observations report
Date
2019-12-22T03:56:19Z (4 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@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-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) started inspect of the LIGO/Virgo S191222n errorbox  60 sec after notice time and 360 sec after trigger time at 2019-12-22 03:41:37 UT, with upper limit up to  18.9 mag. The observations began at zenith distance = 68 deg. The sun  altitude  is -53.7 deg. 

The galactic latitude b = 18 deg., longitude l = 318 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=11107

We obtain a following upper limits.  

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

     395 | 2019-12-22 03:41:37 |          MASTER-IAC | (03h 16m 18.78s , +34d 18m 17.0s) |  P| |    70 | 18.2 |        
     395 | 2019-12-22 03:41:37 |          MASTER-IAC | (03h 15m 29.37s , +34d 22m 21.5s) |  P- |    70 | 18.0 |        
     532 | 2019-12-22 03:43:44 |          MASTER-IAC | (03h 15m 26.66s , +34d 22m 25.2s) |  P- |    90 | 18.2 |        
     532 | 2019-12-22 03:43:44 |          MASTER-IAC | (03h 16m 16.28s , +34d 18m 23.3s) |  P| |    90 | 18.5 |        
     713 | 2019-12-22 03:46:24 |          MASTER-IAC | (03h 16m 18.86s , +34d 18m 26.0s) |  P| |   130 | 18.9 |        
     713 | 2019-12-22 03:46:24 |          MASTER-IAC | (03h 15m 29.02s , +34d 22m 27.1s) |  P- |   130 | 18.5 |        


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