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GCN Circular 27172

Swift GRB200224.14: Global MASTER-Net observations report
2020-02-24T03:34:37Z (4 years ago)
Vladimir Lipunov at Moscow State U/Krylov Obs <>
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),

(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:, 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 GRB200224.14 (trigger No 958141,16h 35m 10.56s , +41d 40m 30.0s, R=0.05) errorbox  17 sec after notice time and 90 sec after trigger time at 2020-02-24 03:26:19 UT, with upper limit up to  13.8 mag. Observations started at twilight.  The observations began at zenith distance =  2 deg. The sun  altitude  is -6.3 deg. 

The galactic latitude b = 42 deg., longitude l = 66 deg.

Real time updated cover map and OT discovered available here:

We obtain a following upper limits.  

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment

      95 |   MASTER-Kislovodsk |  P- |    10 | 13.8 |        
      95 |   MASTER-Kislovodsk |  P| |    10 | 13.0 |        

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

[GCN OPS NOTE(24feb20): This is the beginning Circular in the sequence of 8 circulars
which were all labeled A because of the sequence assigner being offline.  In particular, 
this circular is using the .dd fractional time format instead of the letter A, but the A 
is equivalent for this event.]
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