{
  "circularId": 45811,
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 20:19:03 UT on 5 Oct 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 261005A (trigger 812924348.321234 / 261005847).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 339.9, Dec = 5.5 (J2000 degrees, equivalent to J2000 22h 39m, 5d 30'), with a statistical uncertainty of 5.8 degrees.\n\nThe angle from the Fermi LAT boresight is 64.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn261005847/quicklook/glg_skymap_all_bn261005847.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/bn261005847/quicklook/glg_healpix_all_bn261005847.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn261005847/quicklook/glg_lc_medres34_bn261005847.gif\n",
  "eventId": "GRB 261005A",
  "createdOn": 1791232181320,
  "subject": "GRB 261005A: Fermi GBM Final Real-time Localization",
  "submittedHow": "email",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>"
}