[vsnet-grb-info 25780] Baksan Neutrino Observatory Alert 200601.42: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27880
SUBJECT: Baksan Neutrino Observatory Alert 200601.42: Global MASTER-Net observations report 
DATE:    20/06/01 17:21:13 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-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the Baksan Neutrino Observatory Alert 200601.42 (trigger No 1641722370,12h 43m 36.00s , -43d 18m 00.0s, R=3) errorbox  23072 sec after notice time and 23405 sec after trigger time at 2020-06-01 16:29:35 UT, with upper limit up to  19.1 mag. Observations started at twilight.  The observations began at zenith distance = 28 deg. The sun  altitude  is -10.1 deg. 

The galactic latitude b = 19 deg., longitude l = 302 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1370630

We obtain a following upper limits.  

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

   23435 | 2020-06-01 16:29:35 |         MASTER-SAAO | (12h 39m 38.24s , -43d 49m 52.2s) |   C |    60 | 18.3 |        
   23435 | 2020-06-01 16:29:35 |         MASTER-SAAO | (12h 29m 57.17s , -43d 50m 55.1s) |   C |    60 | 18.5 |        
   23515 | 2020-06-01 16:30:55 |         MASTER-SAAO | (12h 36m 43.84s , -41d 50m 58.7s) |   C |    60 | 18.3 |        
   23515 | 2020-06-01 16:30:55 |         MASTER-SAAO | (12h 27m 20.95s , -41d 52m 04.0s) |   C |    60 | 18.5 |        
   23595 | 2020-06-01 16:32:15 |         MASTER-SAAO | (12h 58m 15.95s , -41d 50m 28.6s) |   C |    60 | 18.5 |        
   23595 | 2020-06-01 16:32:15 |         MASTER-SAAO | (12h 48m 53.16s , -41d 51m 31.6s) |   C |    60 | 18.6 |        
   23675 | 2020-06-01 16:33:34 |         MASTER-SAAO | (12h 43m 33.53s , -45d 48m 56.8s) |   C |    60 | 18.6 |        
   23675 | 2020-06-01 16:33:34 |         MASTER-SAAO | (12h 33m 31.64s , -45d 49m 59.6s) |   C |    60 | 18.8 |        
   23755 | 2020-06-01 16:34:54 |         MASTER-SAAO | (12h 39m 35.87s , -43d 50m 38.4s) |   C |    60 | 18.8 |        
   23755 | 2020-06-01 16:34:54 |         MASTER-SAAO | (12h 29m 54.09s , -43d 51m 42.9s) |   C |    60 | 18.9 |        
   23834 | 2020-06-01 16:36:14 |         MASTER-SAAO | (12h 36m 51.11s , -41d 49m 07.2s) |   C |    60 | 18.6 |        
   23834 | 2020-06-01 16:36:14 |         MASTER-SAAO | (12h 27m 28.02s , -41d 50m 13.4s) |   C |    60 | 18.8 |        
   23914 | 2020-06-01 16:37:34 |         MASTER-SAAO | (12h 58m 11.87s , -41d 49m 55.6s) |   C |    60 | 18.7 |        
   23914 | 2020-06-01 16:37:34 |         MASTER-SAAO | (12h 48m 48.76s , -41d 50m 59.2s) |   C |    60 | 18.9 |        
   23994 | 2020-06-01 16:38:53 |         MASTER-SAAO | (12h 43m 30.79s , -45d 48m 42.6s) |   C |    60 | 18.8 |        
   23994 | 2020-06-01 16:38:53 |         MASTER-SAAO | (12h 33m 28.64s , -45d 49m 45.7s) |   C |    60 | 19.1 |        
   24074 | 2020-06-01 16:40:13 |         MASTER-SAAO | (13h 01m 48.73s , -43d 49m 48.6s) |   C |    60 | 18.8 |        
   24074 | 2020-06-01 16:40:13 |         MASTER-SAAO | (12h 52m 06.98s , -43d 50m 50.6s) |   C |    60 | 19.0 |        
   24154 | 2020-06-01 16:41:34 |         MASTER-SAAO | (12h 55m 48.79s , -39d 51m 03.3s) |   C |    60 | 18.8 |        
   24154 | 2020-06-01 16:41:34 |         MASTER-SAAO | (12h 46m 42.02s , -39d 52m 08.6s) |   C |    60 | 19.1 |        
Filter C is a clear (unfiltred) band. 


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