[vsnet-grb-info 26062] Baksan Neutrino Observatory Alert 200726.66: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28162
SUBJECT: Baksan Neutrino Observatory Alert 200726.66: Global MASTER-Net observations report 
DATE:    20/07/28 04:42:11 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-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 200726.66 (trigger No 1646495705,04h 52m 48.00s , +27d 00m 00.0s, R=3) errorbox  1 days 41162 sec after notice time and 1 days 41762 sec after trigger time at 2020-07-28 03:31:06 UT, with upper limit up to  19.0 mag. The observations began at zenith distance = 73 deg. The sun  altitude  is -25.3 deg. 

The galactic latitude b = -10 deg., longitude l = 175 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1408430

We obtain a following upper limits.  

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

  128192 | 2020-07-28 03:31:06 |         MASTER-SAAO | (04h 35m 39.23s , +23d 58m 25.0s) |   C |    60 | 18.8 |        
  128192 | 2020-07-28 03:31:06 |         MASTER-SAAO | (04h 43m 15.40s , +23d 59m 13.2s) |   C |    60 | 18.3 |        
  129657 | 2020-07-28 03:55:31 |         MASTER-SAAO | (04h 35m 22.08s , +23d 59m 35.6s) |   C |    60 | 17.8 |        
  129657 | 2020-07-28 03:55:31 |         MASTER-SAAO | (04h 42m 57.87s , +24d 00m 31.2s) |   C |    60 | 16.4 |        
  129737 | 2020-07-28 03:56:51 |         MASTER-SAAO | (04h 39m 59.87s , +25d 57m 24.2s) |   C |    60 | 17.7 |        
  129737 | 2020-07-28 03:56:51 |         MASTER-SAAO | (04h 47m 42.91s , +25d 58m 14.7s) |   C |    60 | 17.1 |        
  129816 | 2020-07-28 03:58:10 |         MASTER-SAAO | (04h 45m 12.90s , +27d 58m 25.8s) |   C |    60 | 17.4 |        
  129816 | 2020-07-28 03:58:10 |         MASTER-SAAO | (04h 53m 04.09s , +27d 59m 17.6s) |   C |    60 | 16.7 |        
  129896 | 2020-07-28 03:59:30 |         MASTER-SAAO | (04h 52m 56.16s , +23d 59m 07.5s) |   C |    60 | 17.3 |        
  129896 | 2020-07-28 03:59:30 |         MASTER-SAAO | (05h 00m 31.82s , +23d 59m 59.2s) |   C |    60 | 16.0 |        
  130461 | 2020-07-28 04:08:55 |         MASTER-SAAO | (05h 05m 31.51s , +25d 58m 28.2s) |   C |    60 | 15.1 |        
  130541 | 2020-07-28 04:10:15 |         MASTER-SAAO | (04h 40m 11.26s , +29d 57m 33.5s) |   C |    60 | 16.3 |        
  131100 | 2020-07-28 04:19:34 |         MASTER-SAAO | (04h 39m 47.65s , +25d 57m 31.3s) |   C |    60 | 19.0 |        
  131100 | 2020-07-28 04:19:34 |         MASTER-SAAO | (04h 47m 31.02s , +25d 58m 27.1s) |   C |    60 | 13.5 |        
  131180 | 2020-07-28 04:20:54 |         MASTER-SAAO | (04h 45m 01.30s , +27d 57m 42.3s) |   C |    60 | 18.4 |        
  131180 | 2020-07-28 04:20:54 |         MASTER-SAAO | (04h 52m 52.90s , +27d 58m 36.9s) |   C |    60 | 13.4 |        
  131259 | 2020-07-28 04:22:13 |         MASTER-SAAO | (04h 52m 49.13s , +23d 59m 54.3s) |   C |    60 | 18.8 |        
  131259 | 2020-07-28 04:22:13 |         MASTER-SAAO | (05h 00m 25.38s , +24d 00m 46.6s) |   C |    60 | 15.0 |        
  131586 | 2020-07-28 04:27:40 |         MASTER-SAAO | (04h 57m 37.02s , +26d 00m 01.7s) |   C |    60 | 17.6 |        
  131586 | 2020-07-28 04:27:40 |         MASTER-SAAO | (05h 05m 21.80s , +26d 00m 52.0s) |   C |    60 | 13.1 |        
  131666 | 2020-07-28 04:29:00 |         MASTER-SAAO | (04h 40m 05.34s , +29d 58m 17.5s) |   C |    60 | 15.6 |        
Filter C is a clear (unfiltred) band. 


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