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GCN Circular 27530

Baksan Neutrino Observatory Alert 200410.82: Global MASTER-Net observations report
2020-04-10T20:21:15Z (4 years ago)
Vladimir Lipunov at Moscow State U/Krylov Obs <>
V. Lipunov, E. Gorbovskoy, N.Tyurina, V.Kornilov, P.Balanutsa, I.Gorbunov, D.Vlasenko, 
V.Vladimirov, A.Kuznetsov,  A. Chasovnikov, V.Topolev, D.Kuvshinov, F.Balakin, V.A. Senik
(Lomonosov Moscow State University, SAI, Physics Department),

V.B. Petkov, M.M. Boliev, A.N. Kurenya,
(Baksan Neutrino Observatory, Institute for Nuclear Research of RAS, Moscow, Russia),

R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

N.M. Budnev, O. Gress,  O.Ershova 
(Applied Physics Institute, Irkutsk State University),

V. Yurkov, A. Gabovich, Yu. Sergienko, D. Kobcev 
(Blagoveschensk Educational State University),

A. Tlatov,  D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

R. Podesta, C. Lopez, C.Francile, F. Podesta 
(Observatorio Astronomico Felix Aguilar OAFA, San Juan National University),

(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE  SJNU)

MASTER-Amur robotic telescope  (Global MASTER-Net:, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Baksan Neutrino Observatory Alert 200410.82 (trigger No 1637264073,20h 26m 24.00s , -12d 24m 00.0s, R=3) errorbox  19 sec after notice time and 949 sec after trigger time at 2020-04-10 19:50:22 UT, with upper limit up to  14.5 mag. Observations started at twilight.  The observations began at zenith distance = 73 deg. The sun  altitude  is -9.4 deg. 

The galactic latitude b = -27 deg., longitude l = 33 deg.

Real time updated cover map and OT discovered available here:

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment

     980 | 2020-04-10 19:50:22 |         MASTER-Amur | (20h 31m 16.88s , -12d 22m 08.9s) |   C |    60 | 14.5 |        
    1059 | 2020-04-10 19:51:41 |         MASTER-Amur | (20h 31m 16.89s , -12d 23m 17.8s) |   C |    60 | 14.4 |        
Filter C is a clear (unfiltred) band. 

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