{
  "subject": "GRB 250316A: Fermi GBM Final Real-time Localization",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "circularId": 39741,
  "createdOn": 1742116217841,
  "bibcode": "2025GCN.39741....1F",
  "eventId": "GRB 250316A",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 08:59:57 UT on 16 Mar 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250316A (trigger 763808402.691648 / 250316375).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 208.7, Dec = 24.2 (J2000 degrees, equivalent to J2000 13h 54m, 24d 11'), with a statistical uncertainty of 10.2 degrees.\n\nThe angle from the Fermi LAT boresight is 94.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250316375/quicklook/glg_skymap_all_bn250316375.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/bn250316375/quicklook/glg_healpix_all_bn250316375.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250316375/quicklook/glg_lc_medres34_bn250316375.gif\n",
  "submittedHow": "email"
}