{
  "bibcode": "2019GCN.23922....1L",
  "body": "V. Lipunov, E. Gorbovskoy, N.Tyurina, V.Kornilov, D.Vlasenko, V.Vladimirov, D.Zimnukhov,\nA.Kuznetsov, P.Balanutsa, V.Senik, A. Chasovnikov, V.Topolev, D.Kuvshinov (Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C. Lopez, C.Francile, F. Podesta (Observatorio Astronomico Felix Aguilar OAFA),\n\nH.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE)\n\nO. Gress, N.M. Budnev, O.Ershova, Yu.Ishmuhametova (Applied Physics Institute,Irkutsk State University),\n\nV. Yurkov, A. Gabovich, Yu. Sergienko, D. Kobcev (Blagoveschensk Educational State University),\n\nR. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres (The Institutode Astrofisica de Canarias),\n\nD. Buckley (South African Astronomical Observatory),\n\nA. Tlatov,  D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),\n\n\nMASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)\nlocated in Argentina (OAFA observatory of San Juan National University)\nwas pointed to the  IC190221A  (The IceCube Collaboration  GCN 23918)\n17 sec after notice time (47 sec after trigger time) at 2019-02-21 08:26:26 UT.\n\nThe 5-sigma upper limit ~19 mag (180s exposition), we have 9 expositions.\nAlso we have 4 images of the part of IC error-box in time ntervall \n2019-02-21 08:01:49-08:14:20UT (11 minutes befor neutrino alert)\nduring Fermi trigger inspection .\n\nThe full analysys of ICECUBE error-box (RA: 268.81 [-1.8,+1.2], Dec: -17.04 [-0.5,+1.3] ) will be continued.\n\nThe error box center galactic latitude b = 3.5 deg., longitude l = 11.7deg.\nThe observations started when error-box altitude was 33deg.\nThe sun  altitude  is -23.0 deg.\nThe moon (96 % bright part) was 43 deg. above the horizon. The distance between  moon and  object was 91\n\nThe message may be cited.",
  "circularId": 23922,
  "createdOn": 1550782222000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "IceCube-190221A: MASTER Global Robotic Net optical observation",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "IceCube-190221A"
}