{
  "bibcode": "2019GCN.24076....1L",
  "body": "V. Lipunov, T.Pogrosheva, E. Gorbovskoy, N.Tyurina, V.Kornilov, D.Vlasenko, V.Vladimirov, D.Zimnukhov,\nA.Kuznetsov, P.Balanutsa, I.Gorbunov, A. Chasovnikov,  V.Grinshpun, F.Balakin (Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C. Lopez, C.Francile, F. Podesta (Observatorio Astronomico  Felix Aguilar OAFA, San Juan National University),\n\nH.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE,SJNU)\n\nR. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres (The Instituto de Astrofisica de Canarias),\n\nD. Buckley (South African Astronomical Observatory),\n\nO. Gress, N.M. Budnev, O.Ershova (Applied Physics Institute, Irkutsk State University),\n\nV. Yurkov, A. Gabovich, Yu. Sergienko, D. Kobcev (Blagoveschensk EducationState University),\n\nA. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov (Kislovodsk Solar  Station of the Pulkovo Observatory),\n\nMASTER Global Robotic Net (http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy,vol. 2010, 30L)\nduring  LIGO/Virgo S190408an (Singer et al. GCN 24069) South Part Error \nField  Inspection (Lipunov et al. GCN 24070)\nat MASTER-OAFA found optical transient (no known sources in VIZIER database inside 5\")\n\nMASTER OT J140518.22-395309.9 discovery\n\nMASTER auto-detection system discovered OT source at\n(RA,Dec2000) = 14h 05m 18.22s -39d 53m 09.9s on 2019-04-09.07809UT.\n\nThe OT unfiltered magnitude is 17.4m (mlim=19.1m).\n\nThe OT is seen in 2 MASTER LVC inspect images (Pogrosheva et a., ATel #12644). There is no minor planet at this place.\n\nWe have reference image without OT on 2018-05-19.13417 UT with 20.2 \nunfiltered magnitude limit.\n\nThere is no any sources in VIZIER database.\n\nSpectral observations are required.\n\nThe discovery and reference images are available at:\n\nhttp://master.sai.msu.ru/static/OT/140518.22-395309.9.png\n\nMASTER cover map of Ligo/Virgo S190408an error-field inspection  will be\navailable on-line at:\n\nhttp://master.sai.msu.ru/static/LVC/MASTER_S190408an_map.jpg\n\n  Reduction and observation will be cntinued.\n\nThe message may be cited.",
  "circularId": 24076,
  "createdOn": 1554796723000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "LIGO/Virgo S190408an: MASTER OT detection",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "LIGO/Virgo S190408an"
}