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GCN Circular 26952

Subject
Swift GRB200131.95: Global MASTER-Net observations report
Date
2020-01-31T22:52:38Z (5 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) was pointed to the Swift GRB200131.95 (trigger No 953689,00h 12m 22.80s , +51d 07m 26.4s, R=0.05) errorbox  50 sec after trigger time at 2020-01-31 22:42:06 UT, with upper limit up to  16.6 mag. The observations began at zenith distance = 75 deg. The sun  altitude  is -19.4 deg. 

MASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was pointed to the Swift GRB200131.95 errorbox  12 sec after notice time and 78 sec after trigger time at 2020-01-31 22:42:34 UT, with upper limit up to  16.8 mag. The observations began at zenith distance = 70 deg. The sun  altitude  is -53.2 deg. 

The galactic latitude b = -11 deg., longitude l = 117 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1273952

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

      55 |        MASTER-Tunka |  P| |    10 | 14.5 |        
      83 |          MASTER-IAC |  P- |    10 | 16.1 |        
      84 |          MASTER-IAC |  P| |    10 | 16.4 |        
     128 |          MASTER-IAC |  P- |    20 | 16.4 |        
     128 |          MASTER-IAC |  P| |    20 | 16.6 |        
     182 |          MASTER-IAC |  P- |    30 | 16.5 |        
     182 |          MASTER-IAC |  P| |    30 | 16.8 |        
     325 |        MASTER-Tunka |  P| |    60 | 16.6 |        


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