TITLE: GCN CIRCULAR NUMBER: 23230 SUBJECT: GRB 180914A: MASTER automatic inspection DATE: 18/09/15 08:31:45 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, D. Vlasenko, N.Tiurina, V.Kornilov, A.Kuznetsov, V.Chazov, I. Gorbunov, D.Zimnukhov, D.Kuvshinov, P.Balanutsa, V.Vladimirov, Lomonosov Moscow State University,SAI A. Tlatov, V.Senik, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory D.Svinkin (Ioffe Institute, Sankt Petersburg) D. Buckley, South African Astronomical Observatory (SAAO) R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres The Instituto de Astrofisica de Canarias (IAC) R. Podesta, F. Podesta, C. Lopez, C.Francile Observatorio Astronomico Felix Aguilar (OAFA) H.Levato, Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) O. Gres, N.M.Budnev , Yu.Ishmuhametova Irkutsk State University (ISU) A. Gabovich, V. Yurkov, Yu. Sergienko Blagoveschensk Educational State University (BSPU) MASTER-Tunka robotic telescope (MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located near Bykal Lake (Irkutsk University Astrophysical Center) was starting survey on the FERMI GRB180914.52 error-box (Poolakkil et al., GCN #23227). 17768 sec after trigger time at 2018-09-14 17:27:55 UT. The 5-sigma upper limit on our first (180s exposure) set is about 16.0 mag No OT found. MASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) was starting survey on the LAT GRB180914.52 error-box (ra=03 30 57 dec=-05 15 35 r=0.4, (Bissaldi et al., GCN #23225)). 15521 sec after notice time and 38331 sec after trigger time at 2018-09-14 23:10:38 UT. The 5-sigma upper limit on our first (180s exposure) set is about 18.5 mag The cover map is available at http://observ.pereplet.ru/images/GRB180914A.png No new objects brighter than 18.5 mag were found after the human analysis of automatic candidates. ==================================================================== The galacitc latitude b = 0 deg. The observations made on zenit distance = 54 deg.The moon (31 % bright part) below the horizon (The altitude of the Moon is -19 deg. ). The sun altitude is -59.4 deg. The object can be observed till sunrise at 2018-09-15 04:35:52 THIS BLOCK FOR MASTER-Team USERS ONLY. Link to GRB180914.52 page: https://196.21.94.34//master2/grb.php?not=2018-09-14+18%3A51%3A56.63329&sat=LAT&gcrd=%2852.7375d%2C-5.25972d%29&eb=0.4&trig=2018-09-14+12%3A31%3A47.25&n=GRB180914.52 Long transients in E.B. https://196.21.94.34//master2/trans.php?wh=transients.coord2000@%27%3C%2852.7375d%2C-5.25972d%29%2C0.8d%3E%27%3A%3Ascircle+and+transients.datetime%3E%3D%272018-09-14+12%3A31%3A47.25%27&class=9&t2=LAT+GRB180914.52+optical+counterpart+candidate Short transients in E.B. https://196.21.94.34//master2/trans3.php?wh=transients3.coord2000@%27%3C%2852.7375d%2C-5.25972d%29%2C0.8d%3E%27%3A%3Ascircle+and+transients3.datetime%3E%3D%272018-09-14+12%3A31%3A47.25%27&class=-1&t2=LAT+GRB180914.52+optical+counterpart+candidate Two tube transients in E.B. https://196.21.94.34//master2/trans2.php?wh=transients2.coord2000@%27%3C%2852.7375d%2C-5.25972d%29%2C0.8d%3E%27%3A%3Ascircle+and+transients2.datetime%3E%3D%272018-09-14+12%3A31%3A47.25%27&class=0&t2=LAT+GRB180914.52+optical+counterpart+candidate Undef. objects 1 image https://196.21.94.34//master2/aobj.php?wh=stars.coord2000@%27%3C%2852.7375d%2C-5.25972d%29%2C0.8d%3E%27%3A%3Ascircle+and+stars.class=0+and+stars.status+and+stars.proc_id=578290&t2=LAT+GRB180914.52+1+image+optical+counterpart+candidate This message can be cited