{
  "subject": "GRB 251003A: Fermi GBM Final Real-time Localization",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 01:58:31 UT on 3 Oct 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 251003A (trigger 781149516.956282 / 251003082).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 31.9, Dec = 49.6 (J2000 degrees, equivalent to J2000 02h 07m, 49d 36'), with a statistical uncertainty of 18.2 degrees.\n\nThe angle from the Fermi LAT boresight is 64.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251003082/quicklook/glg_skymap_all_bn251003082.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/bn251003082/quicklook/glg_healpix_all_bn251003082.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251003082/quicklook/glg_lc_medres34_bn251003082.gif\n",
  "bibcode": "2025GCN.42069....1F",
  "createdOn": 1759457348086,
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "circularId": 42069,
  "eventId": "GRB 251003A",
  "submittedHow": "email"
}