{
  "body": "The IceCube Collaboration (http://icecube.wisc.edu/) reports:\n\nOn 25-10-25 at 13:47:53.26 UT IceCube detected a track-like event with a moderate probability of being of astrophysical origin.\nThe event was selected by the ICECUBE_Astrotrack_BRONZE alert stream.\nThe average astrophysical neutrino purity for Bronze alerts is 30%.\nThis alert has an estimated false alarm rate of 2.3507 events per year due to atmospheric backgrounds.\nThe 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/141518_18513107.amon), more sophisticated reconstruction algorithms have been applied offline, with the direction refined to:\n\nDate: 25-10-25\nTime: 13:47:53.26 UT\nRA: 145.63 (+0.88/-0.88 deg 90% PSF containment) J2000\nDec: 15.06 (+0.65/-0.62 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\nNo known gamma-ray sources listed in the Fermi 4FGL-DR4 or 3FHL catalogs are located within the 90% uncertainty region of the event.\n\nThe IceCube Neutrino Observatory is a cubic-kilometer neutrino detector operating at the geographic South Pole, Antarctica.\n\nThe IceCube realtime alert point of contact can be reached at roc@icecube.wisc.edu",
  "format": "text/plain",
  "submittedHow": "web",
  "createdOn": 1761404349696,
  "eventId": "IceCube-251025A",
  "subject": "IceCube-251025A - IceCube observation of a high-energy neutrino candidate track-like event",
  "submitter": "A. Zegarelli at Ruhr University Bochum <azegarelli@icecube.wisc.edu>",
  "bibcode": "2025GCN.42436....1I",
  "circularId": 42436
}