{
  "circularId": 36756,
  "createdOn": 1719302349563,
  "subject": "GRB240624A: Fermi GBM Observation ",
  "submitter": "Cuán de Barra at UCD <cuan.debarra@ucdconnect.ie>",
  "bibcode": "2024GCN.36756....1D",
  "eventId": "GRB 240624A",
  "submittedHow": "web",
  "body": "C. de Barra (UCD) and C. Meegan (UAH) report on behalf of the Fermi Gamma-ray Burst Monitor Team:\n\n\"At 06:01:11.37 UT on 24 June 2024, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 240624A (trigger 740901676/240624251).\nwhich was also detected by Swift BAT (N. J. Klingler et al. 2024, GCN 36743).\nThe Fermi GBM on-ground location is consistent with the Swift BAT position.\n\nThe angle from the Fermi LAT boresight is 83 degrees.\n\nThe GBM light curve consists of a single emission episode with a duration (T90)\nof about 2 s (50-300 keV). The time-averaged spectrum\nfrom T0-3.1 to T0+2.0 s is best fit by\na power law function with an exponential high-energy cutoff.\nThe power law index is -0.45 +/- 0.39 and the cutoff energy,\nparameterized as Epeak, is 90 +/- 13 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(7.0 +/- 0.8)E-07 erg/cm^2. The 64-ms peak photon flux measured\nstarting from T0+0.38 s in the 10-1000 keV band is 6 +/- 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/\"",
  "format": "text/plain"
}