{
  "bibcode": "2014GCN.16847....1D",
  "body": "R. Desiante (Udine University & INFN Trieste), E. Bissaldi (University & INFN Trieste), D. Kocevski (NASA/GSFC), J.  L. Racusin (NASA/GSFC),\nF. Longo (University & INFN Trieste) and M. Arimoto (Tokyo Tech) report on behalf of the Fermi-LAT team:\n\nAt 10:29:53.55 on September 28, 2014, Fermi-GBM (trigger 433592996/140928437) triggered on GRB 140928A, which entered the Fermi-LAT \nfield of view at T0+1550 s, and was observed until T0+3200 s, during which the LAT detected high-energy emission.\n\nThe best LAT on-ground location is found to be:\n\nRA, Dec = 43.81 , -56.08 (J2000)\n\nwith an error radius of 0.16 deg (90% containment, statistical error only). This was 110 deg from the LAT boresight at the time of the trigger.\n\nThe data from the Fermi-LAT show a significant increase in the event rate at a position consistent with the GBM localization.\n\nMore than 20 photons above 100 MeV are observed from 1550 s (when the GRB entered the LAT FOV) to 3200s (when the spacecraft entered \nthe SAA) after the GBM trigger. \n\nThe highest-energy photon is a 35 GeV event which is observed 3100 seconds after the GBM trigger.\n\nA Swift ToO has been approved for this burst.\n\nThe Fermi-LAT point of contact for this burst is Makoto Arimoto (arimoto@hp.phys.titech.ac.jp).\n\nThe Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV.\nIt is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions\nacross France, Italy, Japan and Sweden.",
  "circularId": 16847,
  "createdOn": 1411939921000,
  "email": "judith.racusin@nasa.gov",
  "subject": "GRB 140928A: Fermi-LAT detection",
  "submitter": "Judith Racusin at GSFC  <judith.racusin@nasa.gov>",
  "eventId": "GRB 140928A"
}