{
  "bibcode": "2019GCN.25948....1L",
  "body": "V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, \nP.Balanutsa,\nA.Kuznetsov, D. Vlasenko, F. Balakin\nLomonosov Moscow State University,\nSternberg Astronomical Institute, Moscow State University\n\nD. Buckley, S. Potter, A. Kniazev, M. Kotze\nSouth African Astronomical Observatory\n\nK. Ivanov, O. Gres, N.M. Budnev, S. Yazev, O. Chuvalaev, V. Poleshchuk\nIrkutsk State University\n\nA. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov\nKislovodsk Solar Station of the Pulkovo Observatory\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\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\nMASTER-SAAO robotic telescope (Global MASTER-Net: \nhttp://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, \nvol. 2010, 30L) located in South Africa (South African Astronomical \nObservatory) was pointed to the  GRB191004.9 23 sec after notice time and \n40 sec after trigger time at 2019-10-04 21:34:21 UT. On our first (10s \nexposure)  set we  found 1 optical transient within Swift error-box \n(ra=49.175 dec=-39.6125 r=0.05) brighter than 16.75.\n\n\n  T-Tmid      Date      Time       Expt.        Ra                Dec \nMag\n---------|---------------------|-------|-----------------|-----------------|-------\n       45   2019-10-04 21:34:21      10   (03h 16m 49.143s , -39d 38m 03.93s)    15.63\n\nThe 5-sigma upper limit has been about 16.75mag\nThe message may be cited.\n\n\n====================================================================\n\n\nThe galactic latitude b = -57 deg., longitude l = 244 deg.\nThe observations made on zenit distance = 42 deg.The moon (42 % bright \npart) is 15 deg. above the horizon. The distance between  moon and  object \nis 106\nThe sun  altitude  is -51.4 deg.\nThe object can be observed till sunrise at 2019-10-05 04:09:28",
  "circularId": 25948,
  "createdOn": 1570225440000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "Swift GRB191004.9: Global MASTER-Net OT detection",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 191004.9"
}