TITLE: GCN CIRCULAR NUMBER: 46246 SUBJECT: SVOM GRB261113.60: Global MASTER-Net observations report DATE: 26/11/13 15:28:27 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs O.Gress, N.Budnev(ISU) 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) M. Segura, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA) MASTER-Tunka robotic telescope [1] located in Russia (Applied Physics Institute, Irkutsk State University) was pointed to the SVOM GRB261113.60 (trigger No 1794580260,23h 05m 17.23s , +05d 08m 36.2s, R=0.0403) errorbox 13 sec after notice time and 74 sec after trigger time at 2026-11-13 14:32:14 UT, with upper limit up to 18.3 mag. The observations began at zenith distance = 52 deg. The sun altitude is -46.6 deg. The galactic latitude b = -49 deg., longitude l = 81 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=3532578 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 79 | 2026-11-13 14:32:14 | MASTER-Tunka | (23h 03m 12.73s , +04d 46m 34.0s) | C | 10 | 18.3 | 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