{
  "body": "S. Lesage (UAH), E. Bissaldi (Politecnico and INFN Bari) and C. Meegan (UAH)\nreport on behalf of the Fermi Gamma-ray Burst Monitor Team:\n\n\"At 12:30:10 UT on 18 October 2023, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 231018A (trigger 719325015/231018521).\nThe Fermi GBM Final Real-time Localization is reported in GCN 34826.\n\nThe angle from the Fermi LAT boresight is 131 degrees.\n\nThe GBM light curve consists of multiple multiple pulses with a duration (T90)\nof about 39.4 s (50-300 keV). The time-averaged spectrum\nfrom T0-4.6 to T0+92.7 s is best fit by\na Band function with Epeak = 109 +/- 3 keV,\nalpha = -1.24 +/- 0.02, and beta = -2.56 +/- 0.05.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.192 +/- 0.009)E-04 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+57 s in the 10-1000 keV band is 75 +/- 1 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog:\nhttps://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html\n\nFor Fermi GBM data and info, please visit the official Fermi GBM Support Page:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"",
  "submittedHow": "web",
  "createdOn": 1697650610251,
  "subject": "GRB 231018A: Fermi GBM Detection",
  "eventId": "GRB 231018A",
  "bibcode": "2023GCN.34831....1L",
  "submitter": "Stephen Lesage at Fermi-GBM Team <sjl0014@uah.edu>",
  "circularId": 34831
}