{
  "eventId": "GRB 260404A",
  "submittedHow": "web",
  "format": "text/plain",
  "body": "The Fermi GBM team reports the detection of a likely SHORT GRB\n\n\"At 23:57:08.96 UT on 04 April 2026, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 260404A (trigger 797039833/260404998).\n\nThe on-ground calculated location, using the Fermi GBM trigger data,\nis RA = 165.79, Dec = -48.56 (J2000 degrees, equivalent to J2000 11h 03m, -48d 33'),\nwith a statistical uncertainty of 18.12 degrees.\n\nThe angle from the Fermi LAT boresight is 113 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260404998/quicklook/glg_skymap_all_bn260404998.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/bn260404998/quicklook/glg_healpix_all_bn260404998.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260404998/quicklook/glg_lc_medres34_bn260404998.gif\"",
  "circularId": 44238,
  "createdOn": 1775675244921,
  "subject": "GRB 260404A: Fermi GBM Final Localization",
  "submitter": "atrigg2@lsu.edu"
}