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GCN Circular 27375

Subject
Swift GRB200312.89: Global MASTER-Net observations report
Date
2020-03-13T02:06:24Z (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-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the Swift GRB200312.89 (trigger No 960986,18h 17m 53.04s , -16d 06m 07.2s, R=0.05) errorbox  15975 sec after trigger time at 2020-03-13 01:43:03 UT, with upper limit up to  18.1 mag. The observations began at zenith distance = 67 deg. The sun  altitude  is -19.6 deg. 

The galactic latitude b = -1 deg., longitude l = 15 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1312200

We obtain a following upper limits.  

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

   10404 |             MASTER- |   C |   180 | 17.4 |        
   10404 |             MASTER- |   C |   180 | 17.2 |        
   11254 |             MASTER- |   C |   180 | 16.2 |        
   11254 |             MASTER- |   C |   180 | 17.7 |        
   11467 |             MASTER- |   C |   180 | 16.4 |        
   11467 |             MASTER- |   C |   180 | 17.3 |        
   11679 |             MASTER- |   C |   180 | 17.3 |        
   11892 |             MASTER- |   C |   180 | 16.3 |        
   11892 |             MASTER- |   C |   180 | 17.4 |        
   12104 |             MASTER- |   C |   180 | 16.3 |        
   12104 |             MASTER- |   C |   180 | 17.2 |        
   12317 |             MASTER- |   C |   180 | 16.4 |        
   12317 |             MASTER- |   C |   180 | 17.5 |        
   12529 |             MASTER- |   C |   180 | 17.4 |        
   12742 |             MASTER- |   C |   180 | 16.3 |        
   12742 |             MASTER- |   C |   180 | 17.2 |        
   12954 |             MASTER- |   C |   180 | 16.4 |        
   12954 |             MASTER- |   C |   180 | 17.6 |        
   13167 |             MASTER- |   C |   180 | 16.1 |        
   13167 |             MASTER- |   C |   180 | 17.5 |        
   13379 |             MASTER- |   C |   180 | 17.4 |        
   13592 |             MASTER- |   C |   180 | 15.8 |        
   13592 |             MASTER- |   C |   180 | 17.6 |        
   16066 |   MASTER-Kislovodsk |   C |   180 | 17.6 |        
   16066 |   MASTER-Kislovodsk |   C |   180 | 18.1 |        
Filter C is a clear (unfiltred) band. 


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