{
  "bibcode": "2014GCN.16426....1F",
  "body": "G. Fitzpatrick (UCD), V. Connaughton (UAH)\nreport on behalf of the Fermi GBM Team:\n\nAt 05:15:28.02 UT on 20 June 2014, the Fermi Gamma-Ray Burst Monitor\ntriggered\nand located GRB 140620A, which was observed by the intermediate Palomar\nTransient Factory beginning 10 minutes after trigger time, and was reported\nin GCN 16425 (Kasliwal, Cenko, and Singer) as iPTF14cva.\n\nThe on-ground calculated location, using the GBM trigger\ndata, is RA = 278, DEC = +43 (J2000 degrees,\nequivalent to 18h 34m, +43d 0.0'), with an uncertainty\nof 2 degrees (radius, 1-sigma containment,\nstatistical only; there is additionally a systematic\nerror which is currently estimated to be 2 to 3 degrees).\nThe angle from the Fermi LAT boresight is 110 degrees.\n\nThe GBM light curve consists of a single peak\nwith a duration (T90) of about 46 s (50-300 keV).\nThe time-averaged spectrum from T0-4 s to T0+35 s is\nadequately fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is -1.1 +/- 0.1 and\nthe cutoff energy, parameterized as Epeak, is 77 +/- 5 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(5.3 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+1 s in the 10-1000 keV band is 6.3 +/- 0.4 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.",
  "circularId": 16426,
  "createdOn": 1403287728000,
  "email": "gerard.fitzpatrick@ucdconnect.ie",
  "subject": "GRB 140620A / iPTF14cva: Fermi GBM observations",
  "submitter": "Gerard Fitzpatrick at UCD  <gerard.fitzpatrick@ucdconnect.ie>",
  "eventId": "GRB 140620A"
}