{
  "bibcode": "2013GCN.14839....1F",
  "body": "G. Fitzpatrick (UCD) and J. Michael Burgess (UAH) report\non behalf of the Fermi GBM Team:\n\nAt 03:05:10.69 UT on 09 June 2013, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 130609A (trigger 392439913 /130609129),\nwhich was also detected by the Swift/BAT (Cummings et al., GCN Circ. 14828).\nThe GBM on-ground location is consistent with the Swift position.\n\nThe GBM light curve consists of a single peak\nwith a duration (T90) of about 5 s (50-300 keV).\nThe time-averaged spectrum from T0-2.6 s to T0+2.8 s is\nadequately fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is -1.2 +/- 0.2 and\nthe cutoff energy, parameterized as Epeak, is 59.5 +/- 7.3 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(7.7 +/- 0.6)E-07 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0-1.6 s in the 8-1000 keV band is 3.2 +/- 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": 14839,
  "createdOn": 1370809246000,
  "email": "gerard.fitzpatrick@ucdconnect.ie",
  "subject": "GRB 130609A: Fermi GBM observation",
  "submitter": "Gerard Fitzpatrick at UCD  <gerard.fitzpatrick@ucdconnect.ie>",
  "eventId": "GRB 130609A"
}