{
  "circularId": 39548,
  "submittedHow": "email",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 13:46:32 UT on 2 Mar 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250302A (trigger 762615997.991246 / 250302574).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 236.4, Dec = 12.2 (J2000 degrees, equivalent to J2000 15h 45m, 12d 11'), with a statistical uncertainty of 5.4 degrees.\n\nThe angle from the Fermi LAT boresight is 67.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250302574/quicklook/glg_skymap_all_bn250302574.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/bn250302574/quicklook/glg_healpix_all_bn250302574.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250302574/quicklook/glg_lc_medres34_bn250302574.gif\n",
  "eventId": "GRB 250302A",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "createdOn": 1740923821473,
  "bibcode": "2025GCN.39548....1F",
  "subject": "GRB 250302A: Fermi GBM Final Real-time Localization"
}