{
  "bibcode": "2017GCN.20676....1R",
  "body": "J. L. Racusin (NASA/GSFC), G. Vianello (Stanford), and J. Perkins (NASA/GSFC), \nreport on behalf of the Fermi-LAT team:\n\nAt 15:34:26.92 on February 14, 2017, Fermi-LAT detected high-energy \nemission from GRB 170214A, which was also detected by Fermi-GBM \n(trigger 508779271 / 170214649, Mailyan et al., GCN 20675). \n\nThe best LAT on-ground location is found to be\nRA, Dec:  256.33, -1.88 (degrees, J2000)\nwith an error radius of 0.08 deg (90% containment, statistical error only). \n\nThis was 33 deg from the LAT boresight at the time of the trigger, and \ntriggered an autonomous repoint of the spacecraft.\n\nThe data from the Fermi-LAT show a significant increase in the event rate \nthat is spatially and temporally correlated with the GBM emission with high \nsignificance.  More than 160 photons above 100 MeV and more than 13 \nphotons above 1 GeV are observed within 1000 seconds. The highest-\nenergy photon is a 7.8 GeV event which is observed ~105 seconds after \nthe GBM trigger.\n\nA Swift ToO has been approved for this burst.\n\nThe Fermi-LAT point of contact for this burst is \nJudith Racusin (judith.racusin@nasa.gov).\n\nThe Fermi-LAT is a pair conversion telescope designed to cover the energy \nband from 20 MeV to greater than 300 GeV. It is the product of an international \ncollaboration between NASA and DOE in the U.S. and many scientific institutions\nacross France, Italy, Japan and Sweden.",
  "circularId": 20676,
  "createdOn": 1487117628000,
  "email": "judith.racusin@nasa.gov",
  "subject": "GRB 170214A: Fermi-LAT detection",
  "submitter": "Judith Racusin at GSFC  <judith.racusin@nasa.gov>",
  "eventId": "GRB 170214A"
}