{
  "bibcode": "2019GCN.25975....1W",
  "body": "J.Wood (NASA/MSFC) and E. Bissaldi (Politecnico & INFN Bari)\nreport on behalf of the Fermi GBM Team:\n\n\"At 09:00:53.70 UT on 4 October 2019, the Fermi Gamma-Ray Burst Monitor (GBM)\ntriggered on a bright, SGR-like burst from the direction of\nthe magnetar SGR 1935+2154 (trigger 591872458/191004376).\n\nThe burst has a duration (T90) of ~0.1 seconds in the energy range 10-300 keV.\nIt is well-fit by a Comptonized model with Epeak 28.71 +/- 2.71 keV and alpha -0.30 +/- 0.55.\n\nThe event fluence (10-300 keV) from T0-0.112s to T0+0.016s is (7.142 +/- 0.576)E-8 erg/cm^2.\nThe average photon flux in the 10-300 keV band during this period is 14.19 +/- 1.0 ph/s/cm^2.\n\nWe note that this is the first outburst since June 2016.\nThe analysis results presented above are preliminary.\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": 25975,
  "createdOn": 1570473432000,
  "email": "joshua.r.wood@nasa.gov",
  "subject": "Fermi/GBM observation of a bright burst from magnetar SGR 1935+2154",
  "submitter": "Joshua Wood at MSFC/Fermi-GBM  <joshua.r.wood@nasa.gov>",
  "eventId": "SGR 1935+2154"
}