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GCN Circular 26784

Subject
LIGO/Virgo S200116ah: Global MASTER-Net observations report
Date
2020-01-16T12:09:54Z (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-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 S200116ah errorbox  85 sec after notice time and 344 sec after trigger time at 2020-01-16 12:02:26 UT, with upper limit up to  17.3 mag. The observations began at zenith distance = 56 deg. The sun  altitude  is -23.3 deg. 

MASTER-Amur robotic telescope  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the LIGO/Virgo S200116ah errorbox  127 sec after notice time and 385 sec after trigger time at 2020-01-16 12:03:07 UT, with upper limit up to  17.4 mag. The observations began at zenith distance = 46 deg. The sun  altitude  is -38.7 deg. 

The galactic latitude b = 16 deg., longitude l = 16 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=11258

We obtain a following upper limits.  

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

     379 | 2020-01-16 12:02:26 |        MASTER-Tunka | (05h 26m 46.70s , +07d 56m 47.6s) |  P| |    70 | 17.3 |        
     416 | 2020-01-16 12:03:07 |         MASTER-Amur | (05h 08m 58.09s , +05d 13m 55.9s) |   C |    60 | 17.4 |        
     495 | 2020-01-16 12:04:27 |         MASTER-Amur | (05h 08m 58.11s , +05d 13m 08.1s) |   C |    60 | 17.3 |        
Filter C is a clear (unfiltred) band. 


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