{
  "format": "text/plain",
  "subject": "GRB 260916B: Fermi GBM Final Localization",
  "eventType": [
    "GRB",
    "Gamma-ray Transient"
  ],
  "createdOn": 1789664583792,
  "circularId": 45614,
  "body": "The Fermi GBM team reports the detection of a likely SHORT GRB.\n\n\"At 15:11:04.34 UT on 16 September 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260916B (trigger 811264269/260916633).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 352.6, Dec = -35.7 (J2000 degrees, equivalent to J2000 23h 27m, -35d 55'), with a statistical uncertainty of 4.6 degrees.\n\nThe angle from the Fermi LAT boresight is 107 degrees.\n\nThe skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260916633/quicklook/glg_skymap_all_bn260916633.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260916633/quicklook/glg_healpix_all_bn260916633.fit\n\nThe GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260916633/quicklook/glg_lc_medres34_bn260916633.gif\"",
  "eventId": "GRB 260916B",
  "submittedHow": "web",
  "submitter": "atrigg2@lsu.edu"
}