{
  "bibcode": "2012GCN.13971....1Y",
  "body": "V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov\nBlagoveschensk Educational State University, Blagoveschensk\n\nE. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina, \nN.Shatskiy, P.Balanutsa, D.Zimnukhov, A.Kuznetsov, V.V.Chazov, D.Denisenko, \nA.Sankovich\nSternberg Astronomical Institute, Moscow State University\n\nA. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik\nKislovodsk Solar Station of the Pulkovo Observatory\n\nK.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk\nIrkutsk State University\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\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Blagoveschensk was pointed to the  GRB121117A 47 sec after \nGRB time at 2012-11-17 08:51:43.208 UT. On our first (10s exposure) set we \nhaven`t found optical transient  within SWIFT error-box (Cummings et \nal., GCN Circ.  13967).\n\nThe 5-sigma upper limit has been about 13.7 mag\n\nThis is the prompt limit because our observations was done during \nGamma-ray activity (Cummings et al., GCN Circ.  13970).\n\nThe message may be cited.",
  "circularId": 13971,
  "createdOn": 1353225373000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 121117A: MASTER  prompt optical limit",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 121117A"
}