{
  "subject": "GRB 231020B: Fermi GBM Final Real-time Localization",
  "createdOn": 1697838378584,
  "bibcode": "2023GCN.34862....1F",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\nAt 21:35:52 UT on 20 Oct 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231020B (trigger 719530557.906538 / 231020900).\n\nThe on-ground calculated location, using the Fermi GBM trigger data, is RA = 221.4, Dec = 15.6 (J2000 degrees, equivalent to J2000 14h 45m, 15d 35'), with a statistical uncertainty of 1.0 degrees.\n\nThe angle from the Fermi LAT boresight is 98.0 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231020900/quicklook/glg_skymap_all_bn231020900.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/bn231020900/quicklook/glg_healpix_all_bn231020900.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231020900/quicklook/glg_lc_medres34_bn231020900.gif\n\n",
  "circularId": 34862,
  "submittedHow": "email",
  "submitter": "Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>",
  "eventId": "GRB 231020B"
}