{
  "bibcode": "2018GCN.22961....1C",
  "body": "M. Crnogorcevic (NASA/GSFC/UMD), G. Vianello (Stanford), J. L. Racusin (NASA/GSFC), \nM. Axelsson (KTH and Stockholm University), and E. Bissaldi (Politecnico and INFN Bari), report \non behalf of the Fermi-LAT team:\n\nAt 18:18:24.46 UT on July, 18, 2018 Fermi-LAT detected high-energy emission from GRB 180718B, \nwhich was also detected by Fermi-GBM (trigger 553630709 / 180718763). \n\nThe best LAT on-ground location is found to be\nRA, Dec = 44.68, -31.5 (J2000)\n\nwith an error radius of 0.65 deg (90% containment, statistical error only). \n\nThis was 50 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 that is spatially and \ntemporally correlated with the trigger with high significance. \n\nThe highest-energy photon is a 300 MeV event which is observed 17 seconds after the GBM trigger.\n\nA Swift ToO has been requested for this burst.\n\nThe Fermi-LAT point of contact for this burst is Elisabetta Bissaldi (elisabetta.bissaldi@ba.infn.it).\n\nThe Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV \nto greater than 300 GeV. It is the product of an international collaboration between NASA and DOE \nin the U.S. and many scientific institutions across France, Italy, Japan and Sweden.",
  "circularId": 22961,
  "createdOn": 1531974244000,
  "email": "judith.racusin@nasa.gov",
  "subject": "GRB 180718B: Fermi-LAT detection",
  "submitter": "Judith Racusin at GSFC  <judith.racusin@nasa.gov>",
  "eventId": "GRB 180718B"
}