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GCN Circular 26297

Subject
Baksan Neutrino Observatory Alert 191127.25: Global MASTER-Net observations report
Date
2019-11-27T09:00:50Z (4 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
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),

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

MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) started inspect of the Baksan Neutrino Observatory Alert 191127.25 (trigger No 1625551366,01h 14m 00.00s , +11d 48m 00.0s, R=3) errorbox  1249 sec after trigger time at 2019-11-27 06:23:35 UT, with upper limit up to  17.2 mag. The observations began at zenith distance = 83 deg. The sun  altitude  is -30.4 deg. 

MASTER-Amur robotic telescope  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Baksan Neutrino Observatory Alert 191127.25 errorbox  9627 sec after trigger time at 2019-11-27 08:43:13 UT, with upper limit up to  17.4 mag. Observations started at twilight.  The observations began at zenith distance = 59 deg. The sun  altitude  is -10.6 deg. 

The galactic latitude b = -50 deg., longitude l = 133 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1209497

We obtain a following upper limits.  

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

    1339 | 2019-11-27 06:23:35 |         MASTER-OAFA | (01h 11m 25.78s , +10d 57m 06.9s) |   C |   180 | 17.2 |        
    1551 | 2019-11-27 06:27:07 |         MASTER-OAFA | (01h 11m 22.53s , +10d 56m 16.6s) |   C |   180 | 17.0 |        
    1762 | 2019-11-27 06:30:38 |         MASTER-OAFA | (01h 11m 28.40s , +10d 56m 38.8s) |   C |   180 | 16.9 |        
    1973 | 2019-11-27 06:34:09 |         MASTER-OAFA | (01h 11m 22.05s , +10d 57m 51.6s) |   C |   180 | 16.5 |        
    9658 | 2019-11-27 08:43:13 |         MASTER-Amur | (01h 17m 51.92s , +12d 04m 01.3s) |   C |    60 | 16.9 |        
    9748 | 2019-11-27 08:44:43 |         MASTER-Amur | (01h 01m 30.59s , +12d 03m 46.2s) |   C |    60 | 17.4 |        
    9839 | 2019-11-27 08:46:15 |         MASTER-Amur | (01h 17m 17.04s , +10d 03m 20.7s) |   C |    60 | 17.0 |        
    9930 | 2019-11-27 08:47:45 |         MASTER-Amur | (01h 00m 59.78s , +10d 04m 23.0s) |   C |    60 | 17.3 |        
   10022 | 2019-11-27 08:49:17 |         MASTER-Amur | (01h 17m 46.29s , +12d 04m 58.2s) |   C |    60 | 17.2 |        
   10111 | 2019-11-27 08:50:47 |         MASTER-Amur | (01h 26m 03.10s , +12d 03m 45.8s) |   C |    60 | 17.2 |        
   10203 | 2019-11-27 08:52:18 |         MASTER-Amur | (01h 01m 25.11s , +12d 03m 24.0s) |   C |    60 | 17.4 |        
   10293 | 2019-11-27 08:53:49 |         MASTER-Amur | (01h 09m 43.82s , +12d 03m 17.3s) |   C |    60 | 17.4 |        
   10384 | 2019-11-27 08:55:19 |         MASTER-Amur | (01h 17m 17.54s , +10d 04m 52.6s) |   C |    60 | 17.4 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
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