{
  "bibcode": "2025GCN.42293....1F",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 16:08:49 UT on 15 Oct 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 251015A (trigger 782237334.425736 / 251015673).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 355.1, Dec = -56.1 (J2000 degrees, equivalent to J2000 23h 40m, -56d 06'), with a statistical uncertainty of 1.0 degrees.\n\nThe angle from the Fermi LAT boresight is 167.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251015673/quicklook/glg_skymap_all_bn251015673.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/bn251015673/quicklook/glg_healpix_all_bn251015673.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251015673/quicklook/glg_lc_medres34_bn251015673.gif\n",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "createdOn": 1760545174772,
  "circularId": 42293,
  "submittedHow": "email",
  "eventId": "GRB 251015A",
  "subject": "GRB 251015A: Fermi GBM Final Real-time Localization"
}