{
  "bibcode": "2010GCN.11426....1G",
  "body": "E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina,\nD.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov,\nD.Zimnukhov, M. Kornilov\nSternberg Astronomical Institute, Moscow State University\n\nV.Krushinski, I.Zalozhnich, T.Kopytova, A. Popov\nUral State University, Kourovka\n\nK.Ivanov, O.Chuvalaev, V.Poleschuk, E.Konstantinov, O.Gres,S.Yazev, N.M.Budnev,\nIrkutsk State University\n\nA. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik\nKislovodsk Solar Station of the Pulkovo Observatory\n\nV.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina\nBlagoveschensk Educational State University, Blagoveschensk\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru, 2x400 \nmm, 2x4 square degrees)  located at \nKislovodsk and 6 very wide field cameras (420 square degrees)was pointed \nto the long bright  GRB101123A (Fermi/GBM trigger 312245496 / 101123952: \nGuiriec, GCN 11423; localized by IPN: Hurley et al., GCN 11424) 23 \nsec after  notice time and 39 sec  after trigger under Moon light \nwith some haze.\n\nAfter some repointing and imaging due to  continuously\n  updating GRB socket position \nrobotic telescope was made several frames at IPN error box (Hurley et \nal., GCN 11424).\n\nThe first 2 telescope images (20 sec exp. time) covered 90%  IPN error \nbox was maded 111 sec after GRB.\n\nThe 3-sigma upper limit has been about 15.0 (telescopes) and 10.0 (wide \nfield cameras).\nThere is no OT brighter 10 mag on Very Wide Field Cameras.\nRobot find two merginally OT candidates on telescope images:\n\nOT   Date        Time       Ra             Dec           Mag(R)\n1. 2010-11-23 22:53:25 08h 45m 06.61s , +05d 14m 47s.1   14.3\n2. 2010-11-23 22:55:28 08h 45m 52.58s , +05d 48m 00s.4   13.2\n\nHowever both transients are visible only on single image.\nThe images, OT candidates and map of the error boxes position  are \navailable at \nhttp://observ.pereplet.ru/images/GRB101123A/grb.html  .\n\nThe message may be cited.\n\nmailto: lipunov@sai.msu.ru",
  "circularId": 11426,
  "createdOn": 1290873317000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 101123A: MASTER prompt optical observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 101123A"
}