{
  "eventId": "GRB 241207B",
  "subject": "GRB 241207B: Fermi GBM Observation",
  "createdOn": 1733794088355,
  "bibcode": "2024GCN.38510....1S",
  "submitter": "Lorenzo Scotton at UAH <lscottongcn@outlook.com>",
  "format": "text/plain",
  "submittedHow": "web",
  "body": "L. Scotton (UAH) and C. Meegan (UAH) report on behalf of\nthe Fermi Gamma-ray Burst Monitor Team:\n\n\"At 20:51:01.75 UT on 07 December 2024, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 241207B (trigger 755297466/241207869)\nwhich was also detected by Swift/BAT-NITRATES (DeLaunay et al. 2024, GCN 38472).\nThe Fermi GBM on-ground location is consistent with the Swift/BAT-NITRATES position.\n\nThe angle from the Fermi LAT boresight is 64 degrees.\n\nThe GBM light curve consists of a single emission episode with a duration (T90)\nof about 0.3 s (50-300 keV). The time-averaged spectrum\nfrom T0-0.2 to T0+0.4 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -0.7 +/- 0.2 and the cutoff energy,\nparameterized as Epeak, is 344 +/- 110 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.8 +/- 0.6)E-07 erg/cm^2. The 64-ms peak photon flux measured\nstarting from T0+0.0 s in the 10-1000 keV band is 7 +/- 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/\"",
  "circularId": 38510
}