{
  "bibcode": "2020GCN.28374....1H",
  "body": "R. Hamburg (UAH), C. Malacaria (NASA-MSFC/USRA) and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\n\"At 13:11:53.38 UT on 06 September 2020, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered and located GRB 200906A (trigger 621090718 / 200906550)\nwhich was also detected by the Swift/BAT and Swift/XRT (Page et al. 2020, GCN 28371).\nThe Fermi GBM Final Real-time Localization (GCN 28370) is consistent with the Swift position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 74 degrees.\n\nThe GBM light curve shows two peaks\nwith a duration (T90) of about 67.3 s (50-300 keV), starting at  T0-49 s.\nThe time-averaged spectrum from T0-4.1 s to T0+16.4 s is\nbest fit by a Band function with Epeak = 50.5 +/- 9.9 keV,\nalpha = -1.1 +/- 0.2 , and beta = -2.1 +/- 0.1\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.9 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+1.8 s in the 10-1000 keV band\nis 4.5 +/- 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": 28374,
  "createdOn": 1599436991000,
  "email": "cmalacaria@usra.edu",
  "subject": "GRB 200906A: Fermi GBM detection",
  "submitter": "Christian Malacaria at NASA-MSFC/USRA  <cmalacaria@usra.edu>",
  "eventId": "GRB 200906A"
}