{
  "bibcode": "2012GCN.13848....1Y",
  "body": "V.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\nE. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina, \nN.Shatskiy, P.Balanutsa, D.Zimnukhov, A.Kuznetsov,  V.V.Chazov, A.Sankovich, \nD.Denisenko\nMoscow Lomonosov State University, Sternberg Astronomical Institute,\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\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru)\nlocated in Blagoveschensk was pointed to the  GRB121011.47 10 sec s after\nnotice time and 51 sec after GRB time at 2012-10-11 11:16:21.301 UT in\ntwo polarizations.\nThe 5-sigma upper limit  of the first (10s exposure) set  has been about\n17.0 mag\n\nMASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) \nlocated in Tunka was pointed to the  GRB 121011A   65 sec s after notice \ntime and 106 sec after GRB time at 2012-10-11 11:17:14 UT in two \npolarizations. On our first \n(10s exposure) set we haven't found optical transient  within SWIFT \nerror box. The weather conditions were not very good.\n\nThe first individual image on which we see the OT was taken on 2012-10-11 \nat 11:19:20, i.e 230 sec. after the GRB time. The maximum brightness\n(calibrated to 0.8*R+0.2*B from USNO-B1.0) was 16.1.\n\nThe preliminary light curve is available here:\nhttp://master.sai.msu.ru/static/GRB/GRB121011_pre_lc.png\n\nWe note that nothing is visible at the position of the OT on the Palomar \nDSS plates and on color-combined SDSS image, implying the host galaxy is \nfainter than 22.5 m.\n\nThe reduction of the whole data set is continuing.\n\nThis message can be cited.",
  "circularId": 13848,
  "createdOn": 1349961007000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 121011A: MASTER-Net early OT light curve",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 121011A"
}