{
  "bibcode": "2012GCN.13283....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, A.Kuznetsov,\nA.Sankovich\nMoscow Lomonosov State University, Sternberg Astronomical Institute,\n\nK.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk\nIrkutsk State University\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\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Blagoveschensk was pointed to the  120510A 24146 sec after \nGRB time at 2012-05-10 15:30:10.64 UT. On our first (180s exposure) set we \nhaven`t found optical transient  within MAXI/GSC error-box (Serita \net al., GCN Circ 13282).\nThe 5-sigma upper limit has been about 18.6 mag\n\n  The message may be cited.",
  "circularId": 13283,
  "createdOn": 1336725735000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 120510A: MASTER follow up observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 120510A"
}