{
  "bibcode": "2011GCN.12521....1P",
  "body": "A.V. Parhomenko, A. Tlatov, D. Dormidontov\n  Kislovodsk Solar Station of the Pulkovo Observatory\n\n\n  K.Ivanov, V.A.Poleshchuk, S.Yazev, N.M.Budnev, O.Gres, \nO.Chuvalaev,E.Konstantinov,\n  Irkutsk State University\n\n  E. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina, \nN.Shatskiy, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zimnukhov, M. \nKornilov,A.Sankovich\n  Sternberg Astronomical Institute, Moscow State University\n\n\n  V.Krushinski, I.Zalozhnich, T.Kopytova, A. Popov\n  Ural State University, Kourovka\n\n  V.Yurkov, Yu.Sergienko, D.Varda, I.Kudelina\n  Blagoveschensk Educational State University, Blagoveschensk\n\n\nMASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in \nTunka(Siberia) was pointed to the GRB110801A 101 sec after GRB time at \n2011-08-01 19:51:23 UT. Unfortunatelly the objects was not in focus  because \nrecently photometer modification.  On our first (20s\nexposure) set we haven`t found optical transient within SWIFT error-box\n(De Pasquale et al., GCN 12228).\nThe 3-sigma upper limit has been about 14.0 mag (white+polarizator).\n\n\nMASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located \nnear Kislovodsk (Caucasus Mountains)  closed roof 20 min before trigger due to \ncloudy condidtions. The telescope was repointed to the\nGRB110901A  only 47 min 40 sec after trigger time at 2011-08-01 20:37:22 UT.\nWe found OT at UVOT postion (De Pasquale et al., GCN 12228).\nThe results of our photometry are:\n\nTime_Start    T_mean-T_trig  exp time       m        error      Band UT \ns          s 20:37:22          2950        180         16.13       0.06 \nR\n20:44:29          3377        180         16.12       0.06        R 20:48:01 \n3589        180         16.29       0.08        R\n20:48:01          3589        180         16.03       0.06     White 20:51:24 \n3792        180         16.43       0.06        R\n20:51:24          3792        180         16.19       0.06     White\n23:20:14         12722        180         17.75       0.10        R\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.08 in the direction of the burst\n(Schlegel et al. 1998).\n\nThe power low index (F~t^-aplha) apha ~1.0+-0.1     during this observations in \nR-band.\n\nThe message may be cited.",
  "circularId": 12521,
  "createdOn": 1320320795000,
  "email": "gcncirc@observ.inetcomm.ru",
  "subject": "GRB 111022B: MASTER OT observations",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>",
  "eventId": "GRB 111022B"
}