{
  "circularId": 19061,
  "editedOn": 1731773622211,
  "version": 2,
  "body": "A. von Kienlin, H.-F. Yu, and K. Toelge (all MPE) \nreport on behalf of the Fermi GBM Team:\n\n\"At 09:59:01.51 UT on 23 February 2016, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 160223B (trigger 477914345 / 160223416),\nwhich was also detected by INTEGRAL (Götz et al. 2016, GCN 19059)\nThe GBM on-ground location is consistent with the INTEGRAL position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 49 degrees.\n\nThe GBM light curve shows a structured pulse\nwith a duration (T90) of about 17 s (50-300 keV).\nThe time-averaged spectrum from T0-2.560 s to T0+16.896 s is\nbest fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is -0.90 (+0.08/-0.07)  and\nthe cutoff energy, parameterized as Epeak, is 560 (+110 /-80) keV\n\nThe event fluence (10-1000 keV) in this time interval is\n(5.9 +/- 0.3)E-06 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0+0.256 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 Catalog.\"",
  "email": "azk@mpe.mpg.de",
  "eventId": "GRB 160223B",
  "subject": "GRB 160223B: Fermi GBM observation",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "format": "text/plain",
  "createdOn": 1456241278000,
  "submitter": "Andreas von Kienlin at MPE  <azk@mpe.mpg.de>",
  "bibcode": "2016GCN.19061....1V"
}