[vsnet-grb-info 27059] Baksan Neutrino Observatory Alert 201223.60: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  29162
SUBJECT: Baksan Neutrino Observatory Alert 201223.60: Global MASTER-Net observations report 
DATE:    20/12/24 01:00:11 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at 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 201223.60 (trigger No 1659450522,19h 51m 12.00s , -62d 00m 00.0s, R=3) errorbox  36229 sec after notice time and 36556 sec after trigger time at 2020-12-24 00:37:58 UT, with upper limit up to  17.0 mag. Observations started at twilight.  The observations began at zenith distance = 65 deg. The sun  altitude  is -11.5 deg. 

The galactic latitude b = -31 deg., longitude l = 335 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1510246

We obtain a following upper limits.  

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

   36587 | 2020-12-24 00:37:58 |         MASTER-OAFA | (20h 06m 07.03s , -59d 21m 37.9s) |   C |    60 | 15.9 |        
   36666 | 2020-12-24 00:39:17 |         MASTER-OAFA | (20h 16m 27.13s , -61d 22m 41.9s) |   C |    60 | 16.3 |        
   36825 | 2020-12-24 00:41:56 |         MASTER-OAFA | (19h 28m 00.67s , -65d 21m 33.1s) |   C |    60 | 16.1 |        
   36904 | 2020-12-24 00:43:16 |         MASTER-OAFA | (19h 58m 20.64s , -57d 21m 16.3s) |   C |    60 | 16.3 |        
   37063 | 2020-12-24 00:45:55 |         MASTER-OAFA | (20h 07m 28.88s , -65d 22m 45.6s) |   C |    60 | 16.8 |        
   37296 | 2020-12-24 00:49:47 |         MASTER-OAFA | (19h 42m 15.05s , -61d 19m 59.2s) |   C |    60 | 16.9 |        
   37375 | 2020-12-24 00:51:07 |         MASTER-OAFA | (19h 59m 25.35s , -61d 21m 20.4s) |   C |    60 | 17.0 |        
Filter C is a clear (unfiltred) band. 


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