{
  "bibcode": "2015GCN.18333....1L",
  "body": "V. Lipunov, E. Gorbovskoy,   N.Tyurina, V.Kornilov, P.Balanutsa,\nA.Kuznetsov, D.Kuvshinov,\nLomonosov Moscow State University, Sternberg Astronomical Institute\n\nD.Buckley, S. Potter, A.Kniazev, M.Kotze\nSouth African Astronomical Observatory\n\nN.M.Budnev, O.Gres, K.Ivanov, S.A.Yazev, A.V.Poleshuk\nIrkutsk State University\n\nA. Tlatov, V.Sennik, A.V. Parhomenko, D. Dormidontov\nKislovodsk Solar Station of the Pulkovo Observatory\n\nV.Yurkov, Yu.Sergienko, A.Gabovich\nBlagoveschensk Educational State University, Blagoveschensk\n\nHugo Levato and Carlos Saffe\nInstituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)\n\nClaudio Mallamaci, Carlos Lopez and Federico Podest\nObservatorio Astronomico Felix Aguilar (OAFA)\n\nMASTER II  twin robotic telescope (MASTER-Net: http://observ.pereplet.ru,\nFOV= 2x4 square degrees) located in SAAO was starting survey on the aLIGO\ntrigger G184098 error-box    220517 sec after trigger time at 2015-09-16\n20:18:11 UT. The 5-sigma upper limit on our  sets is about 18.4 mag - 19.9\nmag . We observed 212 square degrees  by 3 images for each field during ~2\nhours. There are LMC near the center error box and Milky Way at the east\nedge of the error box. Because large number of stars the redaction is delay\nand continueted. The cover map  is available at\nhttp://master.sai.msu.ru/static/G184098.png\n. <http://master.sai.msu.ru/static/master_antares_alert_150901.png>  We\nstarted from the left edge of the error box as its rise. The gap between\ngreen sets is due to meteo restrictions.\n\nThis circular is an official product of the MASTER team.\n\n[GCN OPS NOTE(19sep15): This Circular was originally published on 19:01 17-Sep-2015 UT.]",
  "circularId": 18333,
  "createdOn": 1442711939000,
  "email": "lipunov2007@gmail.com",
  "subject": "LIGO/Virgo G184098: observations by MASTER",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov2007@gmail.com>",
  "eventId": "LIGO/Virgo G184098"
}