{
  "bibcode": "2020GCN.27531....1V",
  "body": "P. Veres (UAH), E. Bissaldi (Politecnico and INFN Bari) and M. S. Briggs\n(UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 09:43:54.30 UT on 10 April 2020, the Fermi Gamma-Ray Burst Monitor\n(GBM) triggered\nand located an outburst from SGR 1935+2154 (trigger 608204639 / 200410405)\nwhich was also detected by the Konus-Wind (IPN) (Svinkin at al., GCN\n27527). The GBM on-ground location is consistent with the known position of\nthe SGR.\n\nThe trigger was classified as a GRB by the flight software, but it is in\nfact from SGR 1935+2154.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 105\ndegrees.\n\nThe light curve shows a short bright peak with a duration (T90) of about\n128 ms (50-300 keV).\nThe time-averaged spectrum from T0-64 ms to T0+192 ms is best fit by a\npower law function with an exponential high-energy cutoff.  The power law\nindex is 0.70 +/- 0.10 and the cutoff energy, parameterized as Epeak, is\n32.7 +/- 0.3 keV\n\nThe event fluence (10-1000 keV) in this time interval is (2.57 +/- 0.03)E-6\nerg/cm^2. The 64-ms peak photon flux measured starting from T0 in the\n10-1000 keV band is 489 +/- 9 ph/s/cm^2.\n\nWe note that we see indications of saturation of only the TTE data at the\nbrightest part of the pulse.\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\nPage:\nhttps://fermi.gsfc.nasa.gov/ssc/data/access/gbm/\"",
  "circularId": 27531,
  "createdOn": 1586554658000,
  "email": "veresp@gmail.com",
  "subject": "SGR 1935+2154: Fermi GBM observation",
  "submitter": "Peter Veres at UAH  <veresp@gmail.com>",
  "eventId": "SGR 1935+2154"
}