{
  "bibcode": "2022GCN.33011....1M",
  "body": "GRB 221201A: Fermi GBM observation\n\nC. Malacaria (ISSI) and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 12:24:45.31 UT on 01 December 2022, the Fermi Gamma-Ray Burst \nMonitor (GBM)\ntriggered and located GRB 221201A (trigger 691590290 / 221201517).\n\nThis event was also observed by Swift/BAT and�� Swift/XRT (GCN 32998).\n\nThe GBM position is reported in the Fermi-GBM Final on-ground \nLocalization (GCN 32997)\nand is consistent with the Swift position.\nThe angle from the Fermi LAT boresight is 125 degrees.\n\nThe GBM light curve shows a single pulse with a duration (T90) of about \n29 s (50-300 keV).\nThe time-averaged spectrum from T0-0 s to T0+15 s is best fit by a Band \nfunction\nwith Epeak = 144 +/- 7 keV, alpha = -0.57 +/- 0.07, and beta = -2.5 +/- 0.1\n\nThe event fluence (10-1000 keV) in this time interval is (1.59 +/- \n0.03)E-05 erg/cm^2.\nThe 1-sec peak photon flux measured starting from T0+6.8 s in the \n10-1000 keV band\nis 20.5 +/- 0.6 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\n\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 \nPage:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"",
  "circularId": 33011,
  "createdOn": 1670057380000,
  "email": "cmalacaria.astro@gmail.com",
  "subject": "GRB 221201A: Fermi GBM observation",
  "submitter": "Christian Malacaria at ISSI  <cmalacaria.astro@gmail.com>",
  "eventId": "GRB 221201A"
}