{
  "bibcode": "2022GCN.33116....1F",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 04:53:14 UT on 28 Dec 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 221228A (trigger 693895999.795578 / 221228204).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 290.2, Dec = 13.8 (J2000 degrees, equivalent to J2000 19h 20m, 13d 48'), with a statistical uncertainty of 5.4 degrees.\n\nThe angle from the Fermi LAT boresight is 46.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221228204/quicklook/glg_skymap_all_bn221228204.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/2022/bn221228204/quicklook/glg_healpix_all_bn221228204.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221228204/quicklook/glg_lc_medres34_bn221228204.gif",
  "circularId": 33116,
  "createdOn": 1672203817000,
  "email": "do_not_reply@GIOC.nsstc.nasa.gov",
  "subject": "GRB 221228A: Fermi GBM Final Real-time Localization",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM  <do_not_reply@GIOC.nsstc.nasa.gov>",
  "eventId": "GRB 221228A"
}