{
  "bibcode": "2013GCN.14548....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, \nD.Denisenko, A.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\nV.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov\nBlagoveschensk Educational State University, Blagoveschensk\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 Kislovodsk was pointed to the  GRB130502A 55 sec  after notice \ntime and 266 sec after GRB time at 2013-05-02 17:54:56.337 UT in two \npolarizations. On our first (50s exposure) set we haven`t found optical transient  within SWIFT \nerror-box (E. Troja et. al. GCN 14527).\nThe 5-sigma upper limit has been about 18.5 mag\nThe message may be cited.",
  "circularId": 14548,
  "createdOn": 1367616380000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB130502A: MASTER-Net optical observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 130502A"
}