{
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 02:41:38 UT on 5 Mar 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260305A (trigger 794371303.18619 / 260305112).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 216.5, Dec = 34.0 (J2000 degrees, equivalent to J2000 14h 26m, 34d 00'), with a statistical uncertainty of 2.4 degrees.\n\nThe angle from the Fermi LAT boresight is 49.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260305112/quicklook/glg_skymap_all_bn260305112.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/bn260305112/quicklook/glg_healpix_all_bn260305112.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260305112/quicklook/glg_lc_medres34_bn260305112.gif\n",
  "eventId": "GRB 260305A",
  "createdOn": 1772679129478,
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "submittedHow": "email",
  "circularId": 43920,
  "bibcode": "2026GCN.43920....1F",
  "subject": "GRB 260305A: Fermi GBM Final Real-time Localization"
}