{
  "createdOn": 1749563924988,
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "circularId": 40668,
  "bibcode": "2025GCN.40668....1F",
  "subject": "GRB 250610A: Fermi GBM Final Real-time Localization",
  "submittedHow": "email",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 13:48:25 UT on 10 Jun 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250610A (trigger 771256110.581806 / 250610575).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 359.9, Dec = 65.1 (J2000 degrees, equivalent to J2000 23h 59m, 65d 05'), with a statistical uncertainty of 1.0 degrees.\n\nThe angle from the Fermi LAT boresight is 0.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250610575/quicklook/glg_skymap_all_bn250610575.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/bn250610575/quicklook/glg_healpix_all_bn250610575.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250610575/quicklook/glg_lc_medres34_bn250610575.gif\n",
  "eventId": "GRB 250610A"
}