{
  "bibcode": "2023GCN.33397....1F",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 22:01:39 UT on 4 Mar 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230304C (trigger 699660104.796088 / 230304918).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 280.7, Dec = -10.8 (J2000 degrees, equivalent to J2000 18h 42m, -10d 48'), with a statistical uncertainty of 5.2 degrees.\n\nThe angle from the Fermi LAT boresight is 63.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230304918/quicklook/glg_skymap_all_bn230304918.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/2023/bn230304918/quicklook/glg_healpix_all_bn230304918.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230304918/quicklook/glg_lc_medres34_bn230304918.gif",
  "circularId": 33397,
  "createdOn": 1677967827000,
  "email": "do_not_reply@GIOC.nsstc.nasa.gov",
  "subject": "GRB 230304C: Fermi GBM Final Real-time Localization",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM  <do_not_reply@GIOC.nsstc.nasa.gov>",
  "eventId": "GRB 230304C"
}