//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 27928 SUBJECT: Baksan Neutrino Observatory Alert 200611.74: Global MASTER-Net observations report DATE: 20/06/13 09:42:08 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-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 200611.74 (trigger No 1642614459,03h 35m 36.00s , +01d 18m 00.0s, R=3) errorbox 1 days 55463 sec after notice time and 1 days 56507 sec after trigger time at 2020-06-13 09:29:26 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 77 deg. The sun altitude is -25.2 deg. The galactic latitude b = -41 deg., longitude l = 184 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1379757 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 142937 | 2020-06-13 09:29:26 | MASTER-OAFA | (03h 23m 39.38s , -00d 04m 31.9s) | C | 60 | 17.5 | 143120 | 2020-06-13 09:32:29 | MASTER-OAFA | (03h 23m 41.29s , +01d 56m 21.3s) | C | 60 | 17.3 | 143211 | 2020-06-13 09:34:00 | MASTER-OAFA | (03h 23m 49.28s , -02d 03m 35.2s) | C | 60 | 17.3 | 143302 | 2020-06-13 09:35:31 | MASTER-OAFA | (03h 23m 33.77s , -00d 04m 33.2s) | C | 60 | 17.5 | 143393 | 2020-06-13 09:37:02 | MASTER-OAFA | (03h 31m 41.74s , -00d 04m 13.9s) | C | 60 | 17.2 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.