{
  "bibcode": "2015GCN.17279....1B",
  "body": "D.Buckley, S. Potter, A. Kniazev, M. Kotze\nSouth African Astronomical Observatory\n\nE. Gorbovskoy,V. Lipunov, N.Tyurina, P.Balanutsa, D.Denisenko, M.Pruzhinskaya, \nA.Kuznetsov, V.Kornilov, D.Kuvshinov,\nLomonosov Moscow State University, Sternberg Astronomical Institute\n\nO.Gres, K.Ivanov,  S.Yazev, N.M.Budnev,  V.A.Poleshchuk\nIrkutsk State University\n\nV.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov\nBlagoveschensk Educational State University\n\nA. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik\nKislovodsk Solar Station of the Pulkovo Observatory\n\nV.Krushinsky, I.Zalozhnih,  A. Popov\nUral Federal University, Kourovka\n\nH. Levato and C. Saffe\nInstituto de Ciencias Astronomicas de la Tierra y del Espacio (ICATE),\nSan Juan, Argentina\n\nC. Mallamacci, C. Lopez and F. Podest\nObservatorio Astronomico Felix Aguilar (OAFA), San Juan National University, \nArgentina\n\nMASTER-SAAO  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in South Africa (Sutherland) was pointed to the  GRB150103A 33 \nsec after notice time and 115 sec after trigger time at\n2015-01-03 20:04:14 UT. On our first \n(20s exposure)  set we haven`t found optical transient  within SWIFT \nerror-box (Hagen et al., GCN Circ 17269; Evans, GCN Circ 17270; Cummings \net al., GCN Circ 17274; Stroh et al., GCN Circ 17277).\n\nThe 5-sigma upper limit has been about 17.0mag\n\nThis limit slightly yearly than Zadko (Klotz et al., GCN CIRC 17273) and \nSwift UVOT (Hagen, GCN CIRC 17275), but not contradict to them.\n\nThis message may be cited.",
  "circularId": 17279,
  "createdOn": 1420379638000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 150103A: MASTER optical observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 150103A"
}