{
  "subject": "GRB 230802A: Fermi GBM observation",
  "submittedHow": "web",
  "submitter": "Joe Mangan at IJCLab <joseph.mangan@ijclab.in2p3.fr>",
  "createdOn": 1691163561807,
  "circularId": 34334,
  "bibcode": "2023GCN.34334....1D",
  "body": "C. de Barra (UCD), J.Mangan (CNRS/IJCLab) and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 06:50:22.23 UT on 2 August 2023, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 230802A (trigger 712651827 / 230802285),\nwhich was also detected by Swift BAT (N. J. Klingler et al. 2023, GCN 34313).\nThe Fermi GBM on-ground location is consistent with the Swift BAT position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 107 degrees.\n\nThe GBM light curve consists of a single peak\nwith a duration (T90) of about 38 s (50-300 keV)The time-averaged spectrum from -14.3s to 26.6 s is\nbest fit by a simple power law function with index -1.7 +/- 0.02.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.3 +/- 0.1)E-05 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+4.4 s in the 10-1000 keV band\nis 5.6 +/- 0.4 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/\"\n",
  "eventId": "GRB 230802A"
}