{
  "bibcode": "2015GCN.17622....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.Krushinsky, I.Zalozhnih,  A. Popov\nUral Federal University, Yekaterinburg, Kourovka\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\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\nD.Buckley, S. Potter, A.Kniazev, M.Kotze\nSouth African Astronomical Observatory\n\n\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Tunka was pointed to the  GRB150323C 42 sec after notice time \nand 88 sec after trigger time at 2015-03-23 17:09:39 UT in two \npolarizations. On our first (20s exposure)  set we haven`t found optical \ntransient  within SWIFT error-box (Amaral-Rogers et al. GCN17621).\nThe 5-sigma upper limit has been about 17.6 mag\n\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Ural was pointed to the  GRB150323C 35 after notice time and 79 \nsec after trigger time at 2015-03-23 17:09:31 UT  in two polarizations. On \nour first (20s exposure)  set we haven`t found optical transient  within \nSWIFT error-box (ra=12 50 28 dec=+50 11 25 r=0.001400).\nThe 5-sigma upper limit has been about 17.9 mag\n\n\nThe message may be cited.",
  "circularId": 17622,
  "createdOn": 1427131378000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 150323C: MASTER-net optical observation",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 150323C"
}