{
  "eventId": "GRB 260225B",
  "createdOn": 1772033087713,
  "subject": "GRB 260225B: Fermi GBM Final Real-time Localization",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 15:14:07 UT on 25 Feb 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260225B (trigger 793725252.479854 / 260225635).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 326.4, Dec = 0.9 (J2000 degrees, equivalent to J2000 21h 45m, 0d 54'), with a statistical uncertainty of 1.8 degrees.\n\nThe angle from the Fermi LAT boresight is 66.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260225635/quicklook/glg_skymap_all_bn260225635.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260225635/quicklook/glg_healpix_all_bn260225635.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260225635/quicklook/glg_lc_medres34_bn260225635.gif\n",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "bibcode": "2026GCN.43833....1F",
  "submittedHow": "email",
  "circularId": 43833
}