{
  "bibcode": "2022GCN.31580....1M",
  "body": "C. Malacaria (USRA), P. Veres (UAH) and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 23:56:38.37 UT on 10 February 2022, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 220210A (trigger 666230203 / 220210998),\nwhich was also detected by the Swift/BAT-GUANO (Tohuvavohu et al. 2022, GCN 31572),\nFermi-LAT (Longo et al. 2022, GCN 31576), and AGILE (Ursi et al. 2022, GCN 31575).\nThe Fermi GBM Final Real-time Localization (GCN 31568) is consistent with the Swift position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 16 degrees.\n\nThe GBM light curve shows a main peak followed by fainter peaks\nwith a duration (T90) of about 43 s (10-1000 keV).\nThe time-averaged spectrum from T0-0.4 s to T0+2.7 s is\nbest fit by a power-law function with an exponential high-energy cutoff.\nThe power law index is -0.95 +/- 0.07 and the cutoff energy,\nparameterized as Epeak, is 3530 +/- 986 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(4.9 +/- 0.3)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0-0.192 s in the 10-1000 keV band\nis 4.1 +/- 0.2 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": 31580,
  "createdOn": 1644612696000,
  "email": "cmalacaria@usra.edu",
  "subject": "GRB 220210A: Fermi GBM detection",
  "submitter": "Christian Malacaria at NASA-MSFC/USRA  <cmalacaria@usra.edu>",
  "eventId": "GRB 220210A"
}