{
  "bibcode": "2020GCN.27077....1L",
  "body": "V. Lipunov,  V.Shumkov, E. Gorbovskoy, V.Kornilov, P.Balanutsa, N.Tyurina, V.Vladimirov, A.Kuznetsov,\nF.Balakin, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,\nA.Chasovnikov, D.Kuvshinov (Lomonosov Moscow State University, SAI, Physics Department),\nO.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API),\nR. Podesta, C.Lopez, F. Podesta, C.Francile(Observatorio Astronomico Felix Aguilar OAFA),\nH.Levato(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),\nR. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias),\nD. Buckley(South African Astronomical Observatory),\nV. Yurkov, A. Gabovich, Yu. Sergienko(Blagoveschensk Educational State University)\nA. Tlatov, 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)\ncovered 1525 square degrees of S299213t (LVC GCN 27042, Lipunov et al. GCN 27041, GCN 27072\nhttps://gcn.gsfc.nasa.gov/other/S200213t.gcn3 )\nthat is equal to 100% of 50%-error-field and 81% of 90%-error-field\nhttps://master.sai.msu.ru/site/master2/ligo_1.php?id=11331\n\nMASTER OT J044008.76-651302.3 discovery - OT in 15\"W,39.5\"S from PGC315337 center (in 3-sigma of LVC error-box)\nAT2020cph\n\nMASTER-SAAO auto-detection system  discovered OT source at\nR.A.,Dec(2000) = 04h 40m 08.76s -65d 13m 02.3s on 2020-02-14.91294 UT.\n\nThe OT unfiltered magnitude (automatic photometry):\n2020-02-13 22:03:33UT     19.6\n2020-02-14 02:11:16UT     19.0\n2020-02-14 22:04:43UT     18.9\n\nWe have reference image on 2017-12-22.95279 UT with  unfiltered mlim= 20.3m, nearest in time at\n2020-01-27 20:13:33 with mlim=19.0\n\nSpectral observations are required.\n\nPGC315337 has Btc=16.2 (no V in LEDA)\n\nObservations and  analysys will be continued.\nThe message may be cited.",
  "circularId": 27077,
  "createdOn": 1581778048000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "LIGO/Virgo S200213t:  MASTER possible Kilonova candidate in PGC315337",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "LIGO/Virgo S200213t"
}