{
  "bibcode": "2011GCN.11660....1Y",
  "body": "V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina\nBlagoveschensk Educational State University, Blagoveschensk\n\nK.Ivanov, O.Chuvalaev, V.Poleschuk, E.Konstantinov, V.Lenok, O.Gres,\nS.Yazev, N.M.Budnev,\nIrkutsk State University\n\nE. 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, V.Shumkov, S.Shurpakov\nSternberg Astronomical Institute, Moscow State University\n\nV.Krushinski, I.Zalozhnich, A. Popov\nUral State University, Kourovka\n\nA. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik\nKislovodsk Solar Station of the Pulkovo Observatory\n\nTwo MASTER II  robotic telescopes (MASTER-Net: http://observ.pereplet.ru) \nlocated in  Amur-Blagoveschensk  and Tunka-Baykal was pointed to the \nGRB110207A 65 and 30 sec after GRB time correspondingly. On our first (10s exposure) \nset we haven`t found optical transient  within SWIFT-BAT error-box \n(Littlejohns et al., GCN Curc 11658).\nBecause GRB duration is 40 sec, the first images from Tunka is prompt.\nThe obdervations was done at high zenith distance (>80 degrees).\n\nThe 3-sigma upper limit has been about:\n-----------------------------------------------------------------------\nStart Time     mean time       Exp     Limit   Filter    Site \nafter trigger  after trigger   (s)\n-----------------------------------------------------------------------\n    30s           35s           10      13.0     V+P\\/   Tunka-Baykal\n    65s           70s           10      14.1     V+P-|  Amur-Blagoveschensk\n    65s          747s         1370      17.0     V+P-|  Amur-Blagoveschensk\n   1700s        1790s          180      17.4      R       Tunka-Baykal\n\n------------------------------------------------------------------------\n\nP - is polarization.\n\n\nThe message may be cited.\n\n\nmailto: lipunov@sai.msu.ru",
  "circularId": 11660,
  "createdOn": 1297086748000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 110207A: MASTER prompt and early optical observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 110207A"
}