{
  "circularId": 40529,
  "eventId": "GRB 250522A",
  "bibcode": "2025GCN.40529....1F",
  "createdOn": 1747951950028,
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "subject": "GRB 250522A: Fermi GBM Final Real-time Localization",
  "body": "The Fermi GBM team reports the detection of a likely SHORT GRB\n\nAt 22:01:59 UT on 22 May 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250522A (trigger 769644124.77991 / 250522918).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 37.3, Dec = -5.4 (J2000 degrees, equivalent to J2000 02h 29m, -5d 24'), with a statistical uncertainty of 16.9 degrees.\n\nThe angle from the Fermi LAT boresight is 60.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250522918/quicklook/glg_skymap_all_bn250522918.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/bn250522918/quicklook/glg_healpix_all_bn250522918.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250522918/quicklook/glg_lc_medres34_bn250522918.gif\n",
  "submittedHow": "email"
}