{
  "bibcode": "2012GCN.12945....1G",
  "body": "E. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina, \nN.Shatskiy, P.Balanutsa, D.Zimnukhov, A.Kuznetsov, V.V.Chazov, \nP.V.Kortunov, A.Kuznetsov, M.Kornilov, A.Sankovich\nSternberg Astronomical Institute, Moscow 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.Zalozhnich,  A. Popov\nUral State University, Kourovka\n\nK.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok, O.Gres, \nO.Chuvalaev, V.A.Poleshchuk\nIrkutsk State University\n\nH.Levato, C.Mallamaci, C.Saffe\nICATE (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio), San \nJuan, San Juan University, Felix Aguilar Observatory, Argentina\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Kislovodsk was pointed to the  GRB120213A 26 sec. after  notice \ntime and 49 sec. after GRB time at 2012-02-13 00:28:08.528 UT in two \npolarizations.\n  On our first (10s exposure) set we haven`t found optical transient \nwithin SWIFT  error-box (ra=20 04 07 dec=+65 23 59 r=0.050000).\nThe 5-sigma upper limit has been about 16.15mag\nThe message may be cited.",
  "circularId": 12945,
  "createdOn": 1329104377000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 120213A: MASTER-NET early optical observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 120213A"
}