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GCN Circular 26717

Subject
LIGO/Virgo S200112r: Global MASTER-Net observations report
Date
2020-01-12T17:04:43Z (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-Amur robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the LIGO/Virgo S200112r errorbox  223 sec after trigger time at 2020-01-12 16:02:21 UT, with upper limit up to  17.6 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -61.3 deg. 

The galactic latitude b = -14 deg., longitude l = 35 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/ligo_1.php?id=11211

We obtain a following upper limits.  

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

     243 | 2020-01-12 16:02:21 |         MASTER-Amur | (15h 49m 38.40s , +39d 01m 12.7s) |   C |    40 | 16.0 |        
     308 | 2020-01-12 16:03:20 |         MASTER-Amur | (15h 49m 38.58s , +39d 01m 51.2s) |   C |    50 | 16.1 |        
     382 | 2020-01-12 16:04:30 |         MASTER-Amur | (15h 49m 38.51s , +39d 00m 17.2s) |   C |    60 | 16.2 |        
     462 | 2020-01-12 16:05:49 |         MASTER-Amur | (15h 49m 41.99s , +39d 01m 46.9s) |   C |    60 | 15.6 |        
    1818 | 2020-01-12 16:27:26 |         MASTER-Amur | (17h 13m 19.61s , +51d 59m 49.8s) |   C |   180 | 16.9 |        
    2031 | 2020-01-12 16:30:58 |         MASTER-Amur | (15h 51m 14.18s , +44d 01m 04.0s) |   C |   180 | 16.9 |        
    2245 | 2020-01-12 16:34:33 |         MASTER-Amur | (16h 13m 40.13s , +54d 00m 14.5s) |   C |   180 | 17.5 |        
    2460 | 2020-01-12 16:38:08 |         MASTER-Amur | (17h 13m 24.34s , +52d 00m 30.0s) |   C |   180 | 17.0 |        
    2673 | 2020-01-12 16:41:41 |         MASTER-Amur | (17h 26m 22.02s , +51d 58m 50.4s) |   C |   180 | 16.8 |        
    2889 | 2020-01-12 16:45:17 |         MASTER-Amur | (15h 51m 15.54s , +44d 02m 13.6s) |   C |   180 | 17.0 |        
    3101 | 2020-01-12 16:48:48 |         MASTER-Amur | (16h 02m 16.42s , +44d 01m 10.6s) |   C |   180 | 17.0 |        
    3313 | 2020-01-12 16:52:20 |         MASTER-Amur | (16h 13m 35.41s , +54d 02m 05.0s) |   C |   180 | 17.5 |        
    3525 | 2020-01-12 16:55:53 |         MASTER-Amur | (16h 27m 16.53s , +54d 00m 56.3s) |   C |   180 | 17.6 |        
Filter C is a clear (unfiltred) band. 


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