[vsnet-grb-info 25404] Baksan Neutrino Observatory Alert 200406.3: Global MASTER-Net observations report

Tue Apr 7 19:22:20 JST 2020

TITLE:   GCN CIRCULAR
NUMBER:  27504
SUBJECT: Baksan Neutrino Observatory Alert 200406.3: Global MASTER-Net observations report 
DATE:    20/04/07 10:21:09 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 200406.3 (trigger No 1636873626,14h 39m 36.00s , -17d 18m 00.0s, R=3) errorbox  2412 sec after notice time and 3188 sec after trigger time at 2020-04-06 08:00:15 UT, with upper limit up to  18.0 mag. The observations began at zenith distance = 29 deg. The sun  altitude  is -36.7 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Baksan Neutrino Observatory Alert 200406.3 errorbox  2412 sec after notice time and 41601 sec after trigger time at 2020-04-06 18:40:28 UT, with upper limit up to  17.1 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -29.4 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) started inspect of the Baksan Neutrino Observatory Alert 200406.3 errorbox  2412 sec after notice time and 74667 sec after trigger time at 2020-04-07 03:51:33 UT, with upper limit up to  18.8 mag. Observations started at twilight.  The observations began at zenith distance = 51 deg. The sun  altitude  is -14.1 deg. 

The galactic latitude b = 38 deg., longitude l = 337 deg.

Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1330768

We obtain a following upper limits.  

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

    3219 | 2020-04-06 08:00:15 |         MASTER-OAFA | (14h 29m 31.56s , -17d 53m 50.3s) |   C |    60 | 18.0 |        
    3522 | 2020-04-06 08:05:17 |         MASTER-OAFA | (14h 36m 53.04s , -15d 53m 08.7s) |   C |    60 | 17.9 |        
   41632 | 2020-04-06 18:40:28 |   MASTER-Kislovodsk | (14h 28m 34.58s , -13d 50m 15.4s) |   C |    60 | 16.5 |        
   41632 | 2020-04-06 18:40:28 |   MASTER-Kislovodsk | (14h 36m 49.18s , -14d 18m 22.9s) |   C |    60 | 16.5 |        
   41873 | 2020-04-06 18:44:29 |   MASTER-Kislovodsk | (14h 28m 18.81s , -16d 19m 09.5s) |   C |    60 | 16.7 |        
   41873 | 2020-04-06 18:44:29 |   MASTER-Kislovodsk | (14h 19m 58.48s , -15d 51m 05.7s) |   C |    60 | 16.8 |        
   42210 | 2020-04-06 18:50:06 |   MASTER-Kislovodsk | (14h 28m 36.55s , -13d 49m 15.4s) |   C |    60 | 16.8 |        
   42210 | 2020-04-06 18:50:06 |   MASTER-Kislovodsk | (14h 36m 51.81s , -14d 17m 18.9s) |   C |    60 | 16.7 |        
   42290 | 2020-04-06 18:51:26 |   MASTER-Kislovodsk | (14h 19m 58.46s , -15d 49m 55.9s) |   C |    60 | 16.8 |        
   42290 | 2020-04-06 18:51:26 |   MASTER-Kislovodsk | (14h 28m 18.38s , -16d 18m 01.6s) |   C |    60 | 16.9 |        
   42371 | 2020-04-06 18:52:47 |   MASTER-Kislovodsk | (14h 20m 47.81s , -18d 16m 54.3s) |   C |    60 | 16.8 |        
   42842 | 2020-04-06 19:00:38 |   MASTER-Kislovodsk | (14h 20m 51.53s , -18d 17m 00.2s) |   C |    60 | 16.9 |        
   43003 | 2020-04-06 19:03:19 |   MASTER-Kislovodsk | (14h 36m 45.43s , -15d 49m 11.6s) |   C |    60 | 16.8 |        
   43003 | 2020-04-06 19:03:19 |   MASTER-Kislovodsk | (14h 45m 04.95s , -16d 17m 28.9s) |   C |    60 | 17.0 |        
   43084 | 2020-04-06 19:04:40 |   MASTER-Kislovodsk | (14h 29m 11.66s , -17d 49m 56.3s) |   C |    60 | 16.7 |        
   43084 | 2020-04-06 19:04:40 |   MASTER-Kislovodsk | (14h 37m 36.49s , -18d 18m 15.7s) |   C |    60 | 16.9 |        
   43164 | 2020-04-06 19:06:00 |   MASTER-Kislovodsk | (14h 53m 13.71s , -14d 17m 43.3s) |   C |    60 | 17.1 |        
   43244 | 2020-04-06 19:07:20 |   MASTER-Kislovodsk | (14h 22m 45.29s , -19d 49m 42.6s) |   C |    60 | 17.0 |        
   43244 | 2020-04-06 19:07:20 |   MASTER-Kislovodsk | (14h 31m 16.20s , -20d 18m 07.6s) |   C |    60 | 16.9 |        
   43325 | 2020-04-06 19:08:41 |   MASTER-Kislovodsk | (14h 36m 38.18s , -15d 51m 07.6s) |   C |    60 | 17.0 |        
   43325 | 2020-04-06 19:08:41 |   MASTER-Kislovodsk | (14h 44m 58.03s , -16d 19m 27.5s) |   C |    60 | 17.1 |        
   43406 | 2020-04-06 19:10:01 |   MASTER-Kislovodsk | (14h 29m 16.79s , -17d 50m 40.6s) |   C |    60 | 16.9 |        
   43406 | 2020-04-06 19:10:01 |   MASTER-Kislovodsk | (14h 37m 42.01s , -18d 19m 03.2s) |   C |    60 | 17.0 |        
   43486 | 2020-04-06 19:11:22 |   MASTER-Kislovodsk | (14h 45m 02.00s , -13d 49m 24.1s) |   C |    60 | 17.1 |        
   43486 | 2020-04-06 19:11:22 |   MASTER-Kislovodsk | (14h 53m 17.40s , -14d 17m 42.5s) |   C |    60 | 17.1 |        
   74697 | 2020-04-07 03:51:33 |         MASTER-SAAO | (14h 36m 40.84s , -17d 53m 36.1s) |   C |    60 | 18.3 |        
   74698 | 2020-04-07 03:51:34 |         MASTER-SAAO | (14h 29m 15.75s , -17d 54m 29.1s) |   C |    60 | 18.1 |        
   74777 | 2020-04-07 03:52:53 |         MASTER-SAAO | (14h 44m 04.41s , -15d 54m 27.9s) |   C |    60 | 18.6 |        
   74778 | 2020-04-07 03:52:54 |         MASTER-SAAO | (14h 36m 43.86s , -15d 55m 22.4s) |   C |    60 | 18.3 |        
   74857 | 2020-04-07 03:54:13 |         MASTER-SAAO | (14h 53m 28.68s , -17d 55m 38.5s) |   C |    60 | 18.8 |        
   74858 | 2020-04-07 03:54:14 |         MASTER-SAAO | (14h 46m 03.20s , -17d 56m 31.9s) |   C |    60 | 18.5 |        
   74937 | 2020-04-07 03:55:32 |         MASTER-SAAO | (14h 47m 24.70s , -19d 55m 37.5s) |   C |    60 | 18.5 |        
   74938 | 2020-04-07 03:55:34 |         MASTER-SAAO | (14h 39m 53.72s , -19d 56m 30.3s) |   C |    60 | 18.3 |        
   75016 | 2020-04-07 03:56:52 |         MASTER-SAAO | (14h 36m 44.17s , -17d 54m 03.3s) |   C |    60 | 18.2 |        
   75017 | 2020-04-07 03:56:53 |         MASTER-SAAO | (14h 29m 18.68s , -17d 54m 56.7s) |   C |    60 | 18.0 |        
   75096 | 2020-04-07 03:58:12 |         MASTER-SAAO | (14h 44m 01.98s , -15d 55m 24.4s) |   C |    60 | 18.5 |        
   75097 | 2020-04-07 03:58:13 |         MASTER-SAAO | (14h 36m 41.07s , -15d 56m 17.7s) |   C |    60 | 18.2 |        
   75176 | 2020-04-07 03:59:32 |         MASTER-SAAO | (14h 53m 35.18s , -17d 53m 47.0s) |   C |    60 | 18.6 |        
   75177 | 2020-04-07 03:59:33 |         MASTER-SAAO | (14h 46m 09.43s , -17d 54m 39.0s) |   C |    60 | 18.3 |        
   75256 | 2020-04-07 04:00:51 |         MASTER-SAAO | (14h 47m 19.05s , -19d 54m 45.2s) |   C |    60 | 18.3 |        
   75257 | 2020-04-07 04:00:53 |         MASTER-SAAO | (14h 39m 47.79s , -19d 55m 36.6s) |   C |    60 | 18.1 |        
   75337 | 2020-04-07 04:02:12 |         MASTER-SAAO | (14h 35m 43.92s , -13d 53m 21.9s) |   C |    60 | 18.0 |        
   75338 | 2020-04-07 04:02:13 |         MASTER-SAAO | (14h 28m 27.15s , -13d 54m 14.8s) |   C |    60 | 17.8 |        
   75416 | 2020-04-07 04:03:32 |         MASTER-SAAO | (14h 27m 28.75s , -15d 54m 28.7s) |   C |    60 | 17.8 |        
   75417 | 2020-04-07 04:03:33 |         MASTER-SAAO | (14h 20m 07.81s , -15d 55m 20.7s) |   C |    60 | 17.7 |        
   75496 | 2020-04-07 04:04:52 |         MASTER-SAAO | (14h 30m 19.26s , -19d 55m 40.3s) |   C |    60 | 18.0 |        
   75497 | 2020-04-07 04:04:53 |         MASTER-SAAO | (14h 22m 47.93s , -19d 56m 31.2s) |   C |    60 | 18.0 |        
   75576 | 2020-04-07 04:06:12 |         MASTER-SAAO | (14h 52m 18.99s , -13d 55m 13.6s) |   C |    60 | 17.4 |        
   75577 | 2020-04-07 04:06:13 |         MASTER-SAAO | (14h 45m 01.80s , -13d 56m 05.2s) |   C |    60 | 17.2 |        
   75656 | 2020-04-07 04:07:32 |         MASTER-SAAO | (14h 35m 48.15s , -13d 53m 48.0s) |   C |    60 | 17.3 |        
   75657 | 2020-04-07 04:07:33 |         MASTER-SAAO | (14h 28m 31.07s , -13d 54m 39.4s) |   C |    60 | 17.1 |        
   75736 | 2020-04-07 04:08:52 |         MASTER-SAAO | (14h 27m 26.27s , -15d 55m 30.4s) |   C |    60 | 17.2 |        
   75737 | 2020-04-07 04:08:53 |         MASTER-SAAO | (14h 20m 04.97s , -15d 56m 20.7s) |   C |    60 | 17.2 |        
   75815 | 2020-04-07 04:10:11 |         MASTER-SAAO | (14h 30m 26.40s , -19d 53m 58.0s) |   C |    60 | 17.3 |        
   75816 | 2020-04-07 04:10:12 |         MASTER-SAAO | (14h 22m 54.86s , -19d 54m 47.7s) |   C |    60 | 17.3 |        
   75895 | 2020-04-07 04:11:31 |         MASTER-SAAO | (14h 52m 12.36s , -13d 54m 31.1s) |   C |    60 | 16.9 |        
   75896 | 2020-04-07 04:11:32 |         MASTER-SAAO | (14h 44m 54.88s , -13d 55m 21.6s) |   C |    60 | 17.0 |        
   75975 | 2020-04-07 04:12:51 |         MASTER-SAAO | (14h 42m 06.36s , -21d 53m 54.1s) |   C |    60 | 16.7 |        
   75976 | 2020-04-07 04:12:52 |         MASTER-SAAO | (14h 34m 28.36s , -21d 54m 42.8s) |   C |    60 | 16.7 |        
Filter C is a clear (unfiltred) band. 

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