TITLE: GCN CIRCULAR NUMBER: 24976 SUBJECT: Baksan Neutrino Observatory Alert 190703.56 Global MASTER-Net observations report DATE: 19/07/03 20:08:06 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs 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-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Baksan Neutrino Observatory Alert 190703.56 ( 19h 4m 48.00s , + 3d 18m 00.00s, R=3) errorbox 16600 sec after trigger time at 2019-07-03 18:08:09 UT, with upper limit up to 19.8 mag. Observations started at twilight. The observations began at zenit distance = 60 deg. The sun altitude is -11.3 deg. The galactic latitude b = -60 deg., longitude l = 98 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1064246 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 16691 | 2019-07-03 18:08:09 | MASTER-Kislovodsk | ( 19h 7m 40.79s , + 2d 10m 53.87s) | C | 180 | 16.6 | 16691 | 2019-07-03 18:08:09 | MASTER-Kislovodsk | ( 19h 15m 54.28s , + 1d 42m 01.87s) | C | 180 | 17.1 | 16901 | 2019-07-03 18:11:39 | MASTER-Kislovodsk | ( 19h 7m 41.10s , + 2d 11m 14.25s) | C | 180 | 16.8 | 16901 | 2019-07-03 18:11:39 | MASTER-Kislovodsk | ( 19h 15m 54.74s , + 1d 42m 21.26s) | C | 180 | 17.2 | 17439 | 2019-07-03 18:20:38 | MASTER-Kislovodsk | ( 19h 7m 41.35s , + 2d 11m 27.42s) | C | 180 | 17.2 | 17439 | 2019-07-03 18:20:38 | MASTER-Kislovodsk | ( 19h 15m 55.59s , + 1d 42m 35.31s) | C | 180 | 17.5 | 17649 | 2019-07-03 18:24:08 | MASTER-Kislovodsk | ( 19h 7m 40.81s , + 2d 11m 31.12s) | C | 180 | 17.2 | 17649 | 2019-07-03 18:24:08 | MASTER-Kislovodsk | ( 19h 15m 55.30s , + 1d 42m 38.93s) | C | 180 | 17.5 | 17862 | 2019-07-03 18:27:41 | MASTER-Kislovodsk | ( 18h 53m 46.08s , + 4d 11m 31.26s) | C | 180 | 18.7 | 17862 | 2019-07-03 18:27:41 | MASTER-Kislovodsk | ( 19h 2m 03.22s , + 3d 42m 45.36s) | C | 180 | 18.6 | 18074 | 2019-07-03 18:31:12 | MASTER-Kislovodsk | ( 18h 51m 41.31s , + 2d 11m 43.37s) | C | 180 | 19.6 | 18074 | 2019-07-03 18:31:12 | MASTER-Kislovodsk | ( 18h 59m 57.42s , + 1d 42m 57.65s) | C | 180 | 19.6 | 18293 | 2019-07-03 18:34:52 | MASTER-Kislovodsk | ( 18h 57m 16.80s , + 6d 11m 53.27s) | C | 180 | 18.6 | 18293 | 2019-07-03 18:34:52 | MASTER-Kislovodsk | ( 19h 5m 36.51s , + 5d 43m 10.10s) | C | 180 | 18.8 | 18505 | 2019-07-03 18:38:23 | MASTER-Kislovodsk | ( 18h 53m 45.84s , + 4d 12m 06.87s) | C | 180 | 19.0 | 18505 | 2019-07-03 18:38:23 | MASTER-Kislovodsk | ( 19h 2m 04.14s , + 3d 43m 23.38s) | C | 180 | 19.0 | 18715 | 2019-07-03 18:41:54 | MASTER-Kislovodsk | ( 18h 51m 39.81s , + 2d 11m 59.10s) | C | 180 | 19.7 | 18715 | 2019-07-03 18:41:54 | MASTER-Kislovodsk | ( 18h 59m 57.19s , + 1d 43m 13.34s) | C | 180 | 19.8 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.