{
  "bibcode": "2021GCN.30306....1L",
  "body": "S. Lesage (UAH) and R. Hamburg (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 01:32:35.94 UT on 22 June 2021, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 210622A (trigger 646018360 / 210622064)\nwhich was also detected by the Swift/BAT-GUANO (DeLaunay et al. 2021, GCN 30302)\nThe Fermi GBM Final Real-time Localization (GCN 30297) is consistent\nwith the Swift position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 97 degrees.\n\nThe GBM light curve consists of a single peak followed by some\nextended emission with a duration (T90) of about 40 s (50-300 keV).\nThe time-averaged spectrum from T0 s to T0+39.4 s\nis best fit by a power law function with an exponential\nhigh-energy cutoff. The power law index is -0.8 +/- 0.2 and\nthe cutoff energy, parameterized as Epeak, is 376 +/- 98 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.01 +/- 0.12)E-05 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+0.128 s in the 10-1000 keV band\nis 3.1 +/- 0.2 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB\nCatalog:https://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": 30306,
  "createdOn": 1624399687000,
  "email": "sjl0014@uah.edu",
  "subject": "GRB 210622A: Fermi GBM detection",
  "submitter": "Stephen Lesage at Fermi-GBM Team  <sjl0014@uah.edu>",
  "eventId": "GRB 210622A"
}