{
  "bibcode": "2023GCN.33222....1D",
  "body": "S. Dalessi (UAH) and C.Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 15:18:46.70 UT on 24 January 2023, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 230124A (trigger 696266331 / 230124638)\nwhich was also detected by the Swift/BAT-GUANO (J. A. Kennea et al.\n2023, GCN 33220).\nThe Fermi GBM Final Real-time Localization was reported in GCN 33215.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 32 degrees.\n\nThe GBM light curve consists of a single peak\nwith a duration (T90) of about 12 s (50-300 keV).\nThe time-averaged spectrum from T0-2.56 s to T0+12.8 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -0.36 +/- 0.13 and\nthe cutoff energy, parameterized as Epeak, is 77.41 +/- 3.34 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.248 +/- 0.077)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+7.1 s in the 10-1000 keV band\nis 4.6 +/- 0.3 ph/s/cm^2.\n\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/\"",
  "circularId": 33222,
  "createdOn": 1674694842000,
  "email": "sd0104@uah.edu",
  "subject": "GRB 230124A: Fermi GBM Observation",
  "submitter": "Sarah Dalessi at UAH  <sd0104@uah.edu>",
  "eventId": "GRB 230124A"
}