{
  "bibcode": "2019GCN.24294....1L",
  "body": "V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, P.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\n\n\nMASTER-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB190427.19 ( 18h 10m 04.08s , +46d 49m 58.80s, R=3.5) errorbox  45378 sec after trigger time at 2019-04-27 17:10:33 UT, with upper limit up to  19.8 mag. The observations began at zenit distance = 36 deg. The sun  altitude  is -25.2 deg. \n\nThe galactic latitude b = -60 deg., longitude l = 98 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=1004400\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n   45468 | 2019-04-27 17:10:33 |        MASTER-Tunka | ( 17h 57m 43.43s , +46d 10m 42.11s) |   C |   180 | 19.4 |        \n   45468 | 2019-04-27 17:10:33 |        MASTER-Tunka | ( 18h  7m 26.47s , +45d 59m 55.38s) |   C |   180 | 19.8 |        \n   46124 | 2019-04-27 17:21:29 |        MASTER-Tunka | ( 17h 57m 41.81s , +46d 10m 55.77s) |   C |   180 | 19.2 |        \n   46124 | 2019-04-27 17:21:29 |        MASTER-Tunka | ( 18h  7m 25.60s , +46d  0m 08.49s) |   C |   180 | 19.8 |        \n   46415 | 2019-04-27 17:26:19 |        MASTER-Tunka | ( 17h 57m 42.87s , +46d 11m 01.93s) |   C |   180 | 19.4 |        \n   46415 | 2019-04-27 17:26:19 |        MASTER-Tunka | ( 18h  7m 26.54s , +46d  0m 14.87s) |   C |   180 | 19.8 |        \nFilter C is a clear (unfiltred) band. \n\n\nThe observation and reduction will continue. \nThe message may be cited.",
  "circularId": 24294,
  "createdOn": 1556389023000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "Fermi GRB190427.19 Global MASTER-Net observations report",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 190427.19"
}