{
  "bibcode": "2016GCN.19064....1V",
  "body": "P Veres (UAH), K Toelge (MPE), C Meegan (UAH)  and C M Hui (MSFC)\nreport on behalf of the Fermi GBM Team:\n\n\"At 01:44:22.39 UT on 23 February 2016, the Fermi Gamma-Ray Burst\nMonitor triggered\nand located GRB 160223A (trigger 477884666 / 160223072) which was also\ndetected by the Swift/BAT\n(Markwardt et al., GCN 19057). The GBM on-ground location is consistent\nwith the Swift position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 75\ndegrees.\n\nThe GBM light curve shows two separate peaks\nwith a duration (T90) of about 117 s (50-300 keV).\nThe time-averaged spectrum from T0-6 s to T0+124 s is\nbest fit by a power law function with an exponential\nhigh-energy cutoff. The power law index is -0.96 +/- 0.06 and\nthe cutoff energy, parameterized as Epeak, is 308 +/- 30 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(1.46 +/- 0.06)E-5 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+2.7 s in the 10-1000 keV band\nis 5.4 +/- 0.2 ph/s/cm^2.\n\nA Band function fits the spectrum equally well\nwith Epeak= 282 +/- 45 keV, alpha = -0.94 +/- 0.08 and beta = -2.20 +/-\n0.23.\n\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 19064,
  "createdOn": 1456263350000,
  "email": "veresp@gmail.com",
  "subject": "GRB 160223A: Fermi GBM observation",
  "submitter": "Peter Veres at UAH  <veresp@gmail.com>",
  "eventId": "GRB 160223A"
}