{
  "circularId": 44694,
  "submittedHow": "web",
  "bibcode": "2026GCN.44694....1F",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\n\"At 09:35:00.13 UT on 22 May 2026, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 260522B (trigger 801135305/260522399).\n\nThe on-ground calculated location, using the Fermi GBM trigger data,\nis RA = 278.65, Dec = -33.23 (J2000 degrees, equivalent to J2000 18h 34m, -33d 12'),\nwith a statistical uncertainty of 1.0 degrees.\n\nThe angle from the Fermi LAT boresight is 76 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260522399/quicklook/glg_skymap_all_bn260522399.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/bn260522399/quicklook/glg_healpix_all_bn260522399.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260522399/quicklook/glg_lc_medres34_bn260522399.gif\"",
  "submitter": "Cuán de Barra at UCD <cuan.debarra@ucdconnect.ie>",
  "format": "text/plain",
  "eventId": "GRB 260522B",
  "createdOn": 1779451270310,
  "subject": " GRB 260522B: Fermi GBM Final Real-time Localization"
}