{
  "circularId": 45576,
  "createdOn": 1789457316508,
  "subject": "SVOM GRB260915.05: Global MASTER-Net observations report",
  "eventId": "GRB 260915.05",
  "submittedHow": "email",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
  "body": "M. Segura,  F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA)\n\nV.Lipunov, E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko,  \nG.Antipov,  A.Sankovich,  Yu.Tselik, Ya..Kechin, V.Senik, A.Chasovnikov, K.Labsina (Lomonosov MSU)\n\nD.Buckley (SAAO),\n\nA. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity)\nA.Sosnovskij (Lomonosov MSU)\n\nA. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory)\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory)\n\nR.Rebolo (The Instituto de Astrofisica de Canarias)\n\nO.Gress, N.Budnev(ISU)\n\n\nMASTER-OAFA robotic telescope  [1]  located in Argentina (OAFA observatory of San Juan National University) was pointed to the SVOM GRB260915.05 (trigger No 1789434713,00h 32m 31.08s , +08d 14m 32.6s, R=0.093) errorbox  17685 sec after notice time and 17784 sec after trigger time at 2026-09-15 06:08:17 UT, with upper limit up to  20.2 mag. The observations began at zenith distance = 41 deg. The sun  altitude  is -53.4 deg. \n\nThe galactic latitude b = -54 deg., longitude l = 116 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=3504294\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n   17814 | 2026-09-15 06:08:17 |         MASTER-OAFA | (00h 30m 46.32s , +08d 02m 02.0s) |   C |    60 | 20.2 |        \nFilter C is a clear (unfiltred) band. \n\n\nThe observation and reduction will continue. \nThe message may be cited.\n\n[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.\nhttp : // www.pereplet.ru/lipunov/625.html\n"
}