{
  "eventId": "GRB 260411B",
  "submittedHow": "email",
  "createdOn": 1775895305630,
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 08:04:35 UT on 11 Apr 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260411B (trigger 797587480.306254 / 260411337).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 83.2, Dec = 2.8 (J2000 degrees, equivalent to J2000 05h 32m, 2d 47'), with a statistical uncertainty of 1.0 degrees.\n\nThe angle from the Fermi LAT boresight is 60.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260411337/quicklook/glg_skymap_all_bn260411337.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/bn260411337/quicklook/glg_healpix_all_bn260411337.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260411337/quicklook/glg_lc_medres34_bn260411337.gif\n",
  "subject": "GRB 260411B: Fermi GBM Final Real-time Localization",
  "circularId": 44262,
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>"
}