TITLE: GCN CIRCULAR NUMBER: 46183 SUBJECT: EP Alert 261106.89: Global MASTER-Net observations report DATE: 26/11/07 09:27:26 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs M. Segura, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA) V.Lipunov, E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko, G.Antipov, A.Sankovich, Yu.Tselik, Ya..Kechin, V.Senik, A.Chasovnikov, K.Labsina (Lomonosov MSU) D.Buckley (SAAO), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity) A.Sosnovskij (Lomonosov MSU) A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory) L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) R.Rebolo (The Instituto de Astrofisica de Canarias) O.Gress, N.Budnev(ISU) MASTER-OAFA robotic telescope [1] located in Argentina (OAFA observatory of San Juan National University) was pointed to the EP Alert 261106.89 (trigger No 1709322274,03h 07m 53.28s , +24d 58m 30.0s, R=0.051569) errorbox 38766 sec after notice time and 39645 sec after trigger time at 2026-11-07 08:29:23 UT, with upper limit up to 17.2 mag. Observations started at twilight. The observations began at zenith distance = 79 deg. The sun altitude is -13.3 deg. The galactic latitude b = -28 deg., longitude l = 159 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=3532344 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 39676 | 2026-11-07 08:29:23 | MASTER-OAFA | (03h 06m 53.23s , +24d 55m 45.6s) | C | 60 | 17.2 | 39753 | 2026-11-07 08:30:40 | MASTER-OAFA | (03h 06m 50.60s , +24d 57m 07.0s) | C | 60 | 17.0 | 39831 | 2026-11-07 08:31:58 | MASTER-OAFA | (03h 06m 50.47s , +24d 55m 35.8s) | C | 60 | 16.9 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited. [1] - V.M. Lipunov, V.G. Kornilov, E.S. Gorbovskoy, N.A. Tiurina & A.S.Kuznetsov, 2023, Astronomical Robotic Networks and Operative Multichanel Astrophysics, Lomonosov MSU PRESS, 591pp. http : // www.pereplet.ru/lipunov/625.html