{
  "bibcode": "2014GCN.15948....1G",
  "body": "E. Gorbovskoy, V. Lipunov, M. Pruzhinskaya, D.Denisenko, V.Kornilov, \nN.Tyurina,\nP.Balanutsa, A.Kuznetsov, V.V.Chazov, D.Kuvshinov\nLomonosov Moscow State University, Sternberg Astronomical Institute\n\nK.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk\nIrkutsk State University\n\nV.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov\nBlagoveschensk Educational State University, Blagoveschensk\n\nA. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik\nKislovodsk Solar Station of the Pulkovo Observatory\n\nV.Krushinski, I.Zalozhnih,  A. Popov\nUral Federal University, Kourovka\n\nHugo Levato and Carlos Saffe\nInstituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)\n\nClaudio Mallamaci, Carlos Lopez and Federico Podest\nObservatorio Astronomico Felix Aguilar (OAFA)\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Tunka was pointed to the  GRB140311B 29 sec after notice time \nand 107 sec after trigger time at 2014-03-11 21:16:16 UT in two \npolarizations. On our first (20s exposure) set we haven`t found optical \ntransient  within SWIFT error-box (Racusin et. al. GCN 15945). The 5-sigma \nupper limit has been about 17.0 mag. The observations is proceed.\n\nMASTER II  robotic telescope located in Blagoveschensk was pointed to the \nGRB140311B 9 sec after notice time and 85 sec after trigger time at \n2014-03-11 21:15:54 UT in two polarizations. On our first (20s exposure) \nset we haven`t found optical transient  within SWIFT error-box.\nThe 5-sigma upper limit has been about 14.0 mag. The observations on this \nplace made on the bright morning sky.\n\nThe message may be cited.\n\n[GCN OPS NOTE(12mar14): Per author's request, the Subject was changed\nfrom \"MASTER OT light curve (fwd)\" to \"MASTER early optical observations\".]",
  "circularId": 15948,
  "createdOn": 1394575371000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 140311B: MASTER early optical observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 140311B"
}