{
  "bibcode": "2018GCN.23476....1L",
  "body": "V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, \nP.Balanutsa,\nA.Kuznetsov, V.V.Chazov, D. Vlasenko\nLomonosov Moscow State University,\nSternberg Astronomical Institute, Moscow State University\n\nA. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov\nKislovodsk Solar Station of the Pulkovo Observatory\n\nK. Ivanov, O. Gres, N.M. Budnev, S. Yazev, O. Chuvalaev, V. Poleshchuk\nIrkutsk State University\n\nV. Yurkov, A. Gabovich, Yu. Sergienko\nBlagoveschensk Educational State University, Blagoveschensk\n\nR. Podesta, Carlos Lopez and F. Podesta\nObservatorio Astronomico Felix Aguilar (OAFA)\n\nHugo Levato and Carlos Saffe\nInstituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)\n\nR. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres\nThe Instituto de Astrofisica de Canarias\n\nD. Buckley, S. Potter, A. Kniazev, M. Kotze\nSouth African Astronomical Observatory\n\nMASTER-Kislovodsk robotic telescope (MASTER-Net: \nhttp://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, \nvol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station \nof Pulkovo observatory) was pointed to the  GRB181201A (Mereghetti et \nal., GCN #23469) ~13.3 hours after trigger time at 2018-12-01 15:57:35 UT.\nOn our first (180s exposure)  set we  found  optical transient detected \nby MASTER-OAFA (Podesta et al,  GCN 23470; Gorbovskoy et al., Atel \n#12255; also observed by Kong GCN #23475;).\n\n\n  T-Tmid      Date      Time       Expt.        Ra                Dec           Mag\n---------|---------------------|-------|-----------------|-----------------|-------\n  47915s   2018-12-01 15:57:35     180    (21h 17m 11.11s , -12d 37m 50.9s)    17.6\n\nThe 5-sigma upper limit has been about 18.3 mag\n\n\nThe galactic latitude b = -39 deg., longitude l = 39 deg.\nThe observations made on zenit distance = 64 deg.The moon (32 % bright \npart) below the horizon (The altitude of the Moon is -41 deg. ).\nThe sun  altitude  is -25.6 deg.\nThe object can be observed till sunrise at 2018-12-02 04:21:42 UT.\n\nThe message may be cited.",
  "circularId": 23476,
  "createdOn": 1543685068000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 181201A MASTER-Net OT continued observation",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 181201A"
}