{
  "bibcode": "2012GCN.13072....1Y",
  "body": "V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov\nBlagoveschensk Educational State University, Blagoveschensk\n\n\nK.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk\nIrkutsk State University\n\nE. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina, \nN.Shatskiy, P.Balanutsa, D.Zimnukhov, A.Kuznetsov,  V.V.Chazov, A.Kuznetsov, \nA.Sankovich\nSternberg Astronomical Institute, Moscow State University\n\n\nA. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik\nKislovodsk Solar Station of the Pulkovo Observatory\n\nV.Krushinski, I.Zalozhnich,  A. Popov, A. Bourdanov, A. Punanova\nUral Federal University\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 Blagoveschensk was pointed to the  GRB120320A (Markwardt et \nal., GCN 13071) 32 sec s after notice time and 156 sec after GRB time\nat 2012-03-20 11:58:51.633 UT. On our first (30s exposure) set we haven`t\nfound optical transient  within SWIFT BAT error-box (Markwardt et al., GCN 13071).\nThe 5-sigma upper limit has been about 15.4 mag .\nThe low limit is due to high zenit distance (8 degrees up to horizont).\n\nThe message may be cited.",
  "circularId": 13072,
  "createdOn": 1332248944000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 120320A: MASTER optical observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 120320A"
}