{
  "bibcode": "2020GCN.28210....1I",
  "body": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nOn 20/08/06 at 13:50:56.43 UT IceCube detected a track-like event with a moderate probability of being of astrophysical origin. The event was selected by the ICECUBE_Astrotrack_Bronze alert stream.  The average astrophysical neutrino purity for Bronze alerts is 30%. This alert has an estimated false alarm rate of 0.792 events per year due to atmospheric backgrounds. The IceCube detector was in a normal operating state at the time of detection. \n\nAfter the initial automated alert (https://gcn.gsfc.nasa.gov/notices_amon_g_b/134354_59221243.amon <https://gcn.gsfc.nasa.gov/notices_amon_g_b/134354_59221243.amon>), more \nsophisticated reconstruction algorithms have been applied offline, with the direction refined to:\n\nDate: 20/08/06\nTime: 13:50:56.43  UT\nRA: 157.25 (+1.21 -0.89 deg 90% PSF containment) J2000\nDec:  47.75 (+0.65 -0.64 deg 90% PSF containment) J2000\n\nWe encourage follow-up by ground and space-based instruments to help identify a possible astrophysical source for the candidate neutrino.\n\nThere are no Fermi 4FGL sources located within the 90% localization region. The nearest gamma-ray source is 4FGL J1015.0+4926, located at RA: 153.77 deg, Dec: 49.43 deg (2.85 deg away from the best-fit event position).\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica. The IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu <mailto:roc@icecube.wisc.edu>",
  "circularId": 28210,
  "createdOn": 1596728804000,
  "email": "robert.stein@desy.de",
  "subject": "IceCube-200806A: IceCube observation of a high-energy neutrino candidate event",
  "submitter": "Robert Stein at DESY  <robert.stein@desy.de>",
  "eventId": "IceCube-200806A"
}