{
  "bibcode": "2017GCN.20392....1L",
  "body": "V.M.  Lipunov, O.Gress, N.Tyurina, E. Gorbovskoy, V.G. Kornilov, \nP.Balanutsa, \nA.Kuznetsov, V.Shumkov, M.I.Panchenko Lomonosov Moscow State University, \nSternberg Astronomical Institute\n\nD.Buckley, S. Potter, M. Kotze South African Astronomical Observatory\n\nR. Rebolo, M. Serra-Ricart, G. Israelian, N.Lodiu\nThe Instituto de Astrofisica de Canarias\n\nA. Tlatov, V.Sennik\nKislovodsk Solar Station of the Pulkovo Observatory\n\nN.M. Budnev, O. Gress, K. Ivanov\nIrkutsk State University\n\nV.Yurkov, Yu.Sergienko, A.Gabovich\nBlagoveschensk Educational State University, Blagoveschensk\n\n\nMASTER OT J105811.78+811432.6 discovery - BLA flare in GW170401 field\n\nMASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) \n= 10h 58m 11.78s +81d 14m 32.6s on 2017-01-06.74507 UT.\n\nThe OT unfiltered magnitude is 16.1m (limit 19.4m).\n\nThe OT is seen in 11 images. There is no minor planet at this place.\n\nWe have reference image without OT on 2012-10-20.65339 UT with unfiltered \nmagnitude limit 19.7m.\n\nThere is Blazar with gamma-ray counterpart in 0.57\" ( \nhttp://vizier.u-strasbg.fr/viz-bin/VizieR?-source=&-out.add=_r&-out.add=_RAJ%2C_DEJ&-sort=_r&-to=&-out.max=20&-meta.ucd=2&-meta.foot=1&-c=164.5490875+81.242377777778&-c.rs=5 \n)\n\nSpectral observations are required.\n\nThe discovery and reference images are available at:\n\nhttp://master.sai.msu.ru/static/OT/MASTEROTJ105811.78+811432.jpg",
  "circularId": 20392,
  "createdOn": 1483801048000,
  "email": "lipunov2007@gmail.com",
  "subject": "LIGO/Virgo G268556/GW170104: Global MASTER Net second OT detection",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov2007@gmail.com>",
  "eventId": "LIGO/Virgo G268556"
}