TITLE: GCN CIRCULAR NUMBER: 38572 SUBJECT: Integral GRB241215.58: Global MASTER-Net observations report DATE: 24/12/15 14:19:47 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V.Lipunov, E.Gorbovskoy, N.Tiurina, P.Balanutsa, , D.Vlasenko, I.Panchenko, A.Kuznetsov, G.Antipov, A.Sankovich, A.Sosnovskij, Yu.Tselik, M.Gulyaev, Ya.Kechin, V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU), O.Gress, N.Budnev (ISU), C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity) D.Buckley (SAAO), R.Rebolo (The Instituto de Astrofisica de Canarias), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) MASTER-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) was pointed to the Integral GRB241215.58 (trigger No 11001,00h 42m 22.96s , +32d 29m 29.4s, R=0.0483333) errorbox 26 sec after notice time and 53 sec after trigger time at 2024-12-15 13:54:21 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 27 deg. The sun altitude is -44.6 deg. The galactic latitude b = -30 deg., longitude l = 121 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2710514 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 55 | MASTER-Tunka | C | 1 | 16.6 | 60 | MASTER-Tunka | C | 1 | 16.7 | 66 | MASTER-Tunka | C | 1 | 16.7 | 73 | MASTER-Tunka | C | 5 | 17.5 | 82 | MASTER-Tunka | C | 5 | 17.5 | 90 | MASTER-Tunka | C | 5 | 17.3 | 99 | MASTER-Tunka | C | 5 | 17.4 | 107 | MASTER-Tunka | C | 5 | 17.5 | 116 | MASTER-Tunka | C | 5 | 17.4 | 125 | MASTER-Tunka | C | 5 | 17.5 | 134 | MASTER-Tunka | C | 5 | 17.4 | 142 | MASTER-Tunka | C | 5 | 17.3 | 151 | MASTER-Tunka | C | 5 | 17.4 | 160 | MASTER-Tunka | C | 5 | 17.4 | 168 | MASTER-Tunka | C | 5 | 17.4 | 177 | MASTER-Tunka | C | 5 | 17.4 | 186 | MASTER-Tunka | C | 5 | 17.3 | 195 | MASTER-Tunka | C | 5 | 17.4 | 204 | MASTER-Tunka | C | 5 | 17.4 | 212 | MASTER-Tunka | C | 5 | 17.3 | 221 | MASTER-Tunka | C | 5 | 17.4 | 230 | MASTER-Tunka | C | 5 | 17.5 | 238 | MASTER-Tunka | C | 5 | 17.4 | 247 | MASTER-Tunka | C | 5 | 17.4 | 255 | MASTER-Tunka | C | 5 | 17.4 | 264 | MASTER-Tunka | C | 5 | 17.5 | 272 | MASTER-Tunka | C | 5 | 17.5 | 281 | MASTER-Tunka | C | 5 | 17.5 | 290 | MASTER-Tunka | C | 5 | 17.4 | 298 | MASTER-Tunka | C | 5 | 17.3 | 307 | MASTER-Tunka | C | 5 | 17.4 | 316 | MASTER-Tunka | C | 5 | 17.4 | 324 | MASTER-Tunka | C | 5 | 17.4 | 341 | MASTER-Tunka | C | 5 | 17.4 | 350 | MASTER-Tunka | C | 5 | 17.4 | 359 | MASTER-Tunka | C | 5 | 17.4 | 368 | MASTER-Tunka | C | 5 | 17.5 | 376 | MASTER-Tunka | C | 5 | 17.4 | 385 | MASTER-Tunka | C | 5 | 17.4 | 393 | MASTER-Tunka | C | 5 | 17.4 | 402 | MASTER-Tunka | C | 5 | 17.5 | 410 | MASTER-Tunka | C | 5 | 17.5 | 426 | MASTER-Tunka | C | 5 | 17.5 | 437 | MASTER-Tunka | C | 5 | 17.5 | 445 | MASTER-Tunka | C | 5 | 17.4 | 454 | MASTER-Tunka | C | 5 | 17.4 | 463 | MASTER-Tunka | C | 5 | 17.5 | 471 | MASTER-Tunka | C | 5 | 17.4 | 482 | MASTER-Tunka | C | 5 | 17.5 | 491 | MASTER-Tunka | C | 5 | 17.5 | 500 | MASTER-Tunka | C | 5 | 17.5 | 509 | MASTER-Tunka | C | 5 | 17.4 | 518 | MASTER-Tunka | C | 5 | 17.4 | 526 | MASTER-Tunka | C | 5 | 17.4 | 535 | MASTER-Tunka | C | 5 | 17.4 | 543 | MASTER-Tunka | C | 5 | 17.3 | 552 | MASTER-Tunka | C | 5 | 17.4 | 571 | MASTER-Tunka | C | 5 | 17.3 | 583 | MASTER-Tunka | C | 5 | 17.3 | 593 | MASTER-Tunka | C | 5 | 17.4 | 602 | MASTER-Tunka | C | 5 | 17.4 | 611 | MASTER-Tunka | C | 5 | 17.4 | 620 | MASTER-Tunka | C | 5 | 17.4 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.