[vsnet-grb-info 24656] LIGO/Virgo S200115j: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  26755
SUBJECT: LIGO/Virgo S200115j: Global MASTER-Net observations report 
DATE:    20/01/15 04:36:36 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-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 S200115j errorbox  438 sec after trigger time at 2020-01-15 04:30:27 UT, with upper limit up to  14.6 mag. The observations began at zenith distance = 44 deg. The sun  altitude  is -44.7 deg. 

The galactic latitude b = -31 deg., longitude l = 347 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=11234

We obtain a following upper limits.  

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

     484 | 2020-01-15 04:30:27 |          MASTER-IAC | (09h 55m 13.34s , +71d 23m 02.5s) |  P| |    90 | 14.6 |        
     484 | 2020-01-15 04:30:27 |          MASTER-IAC | (09h 53m 18.93s , +71d 25m 54.8s) |  P- |    90 | 14.5 |        


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