{
  "bibcode": "2015GCN.17433....1I",
  "body": "K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk\nIrkutsk State University\n\nE. Gorbovskoy, V. Lipunov,  M.Pruzhinskaya, V.Kornilov, D.Kuvshinov, \nN.Tyurina, N.Shatskiy, P.Balanutsa, D.Zimnukhov, A.Kuznetsov, V.V.Chazov, \nD.Denisenko, A.Sankovich\nLomonosov Moscow State University,\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.Krushinsky, I.Zalozhnih,  A. Popov\nUral Federal University, Yekaterinburg, Kourovka\n\nD.Buckley, S. Potter, A.Kniazev, M.Kotze\nSouth African Astronomical Observatory\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\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Tunka was pointed to the  GRB150211A 39 sec after notice time \nand 55 sec after trigger time at 2015-02-11 11:53:08 UT in two \npolarizations. On our first (10s exposure)  set we haven`t found optical transient  within SWIFT error-box \n(ra=16 59 25 dec=+55 22 58 r=0.050000).\nThe 5-sigma upper limit has been about 15.5 mag\nThe position hava a high (z~75d) zenith distance.\nThe observation and data reductions is continued.\nThe message may be cited.",
  "circularId": 17433,
  "createdOn": 1423656200000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 150211A: MASTER early optical observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 150211A"
}