{
  "bibcode": "2025GCN.39138....1F",
  "subject": "GRB 250204A: Fermi GBM Final Real-time Localization",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "createdOn": 1738654730551,
  "eventId": "GRB 250204A",
  "circularId": 39138,
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 07:28:17 UT on 4 Feb 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250204A (trigger 760346902.4098 / 250204311).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 108.2, Dec = -23.8 (J2000 degrees, equivalent to J2000 07h 12m, -23d 48'), with a statistical uncertainty of 1.1 degrees.\n\nThe angle from the Fermi LAT boresight is 9.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250204311/quicklook/glg_skymap_all_bn250204311.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/2025/bn250204311/quicklook/glg_healpix_all_bn250204311.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250204311/quicklook/glg_lc_medres34_bn250204311.gif\n",
  "submittedHow": "email"
}