{
  "bibcode": "2022GCN.32903....1M",
  "body": "J. Mangan (UCD), R. Dunwoody (UCD) and C. Meegan (UAH), report on behalf of\nthe Fermi GBM Team:\n\nAt 01:05:27.31 UT on 29 October 2022, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 221029A (trigger 688698332 / 21029045). The\nFermi GBM Final Real-time Localization is reported in GCN 32900.\n\nThe GBM light curve consists of three emission episodes\nwith a duration (T90) of about 27.7 s (50-300 keV).\nThe time-averaged spectrum from T0+0.003 s to T0+28.416 s is\nbest fit by a Band function with Epeak = 130.7 +/- 6.3 keV,\nalpha = -1.12 +/- 0.03, and beta = -2.15 +/- 0.04\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.69 +/- 0.04)E-05 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+0.32 s in the 10-1000 keV band\nis 35.5 +/- 0.5 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\nSupport Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/",
  "circularId": 32903,
  "createdOn": 1667309695000,
  "email": "joseph.mangan@ucdconnect.ie",
  "subject": "GRB 221029A: Fermi GBM observation",
  "submitter": "Joe Mangan at UCD  <joseph.mangan@ucdconnect.ie>",
  "eventId": "GRB 221029A"
}