{
  "bibcode": "2015GCN.17319....1V",
  "body": "A. von Kienlin (MPE) and E. Burns (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 02:57:47.00 UT on 20 January 2015, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 150120A (trigger 443415470/150120123), which was\nalso detected by the Swift/BAT & XRT\n(D'Elia et al. 2015, GCN 17310). The GBM on-ground location is consistent\nwith the Swift position.\n\nThe angle from the Fermi LAT boresight is 98 degrees.\n\nThe GBM light curve shows a single pulse\nwith a duration (T90) of about 2 s (50-300 keV).\nThe time-averaged spectrum from T0-1.024 s to T0+0.512 s is\nwell fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is -1.43 (+0.28/-0.24) and\nthe cutoff energy, parameterized as Epeak, is 130 (+150/-50) keV\n\nThe event fluence (10-1000 keV) in this time interval is\n(3.4 +/- 0.8)E-07 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0-0.64 s in the 10-1000 keV band\nis 3.1 +/- 0.3 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 17319,
  "createdOn": 1421761782000,
  "email": "azk@mpe.mpg.de",
  "subject": "GRB 150120A: Fermi GBM observation",
  "submitter": "Andreas von Kienlin at MPE  <azk@mpe.mpg.de>",
  "eventId": "GRB 150120A"
}