{
  "bibcode": "2015GCN.17356....1R",
  "body": "J. L. Racusin (NASA/GSFC), G. Vianello (Stanford), and D. Kocevski \n(NASA/GSFC) report on behalf of the Fermi-LAT team:\n\nAt 09:32:44 on January 27, 2015, Fermi-LAT detected emission from \nGRB 150127A, which was also detected by Fermi-GBM (trigger \n444043967/150127398, GCN 17355).\n\nThe GBM location was initially inside the LAT field of view at an angle \nof ~39 degrees to the LAT boresight.  No significant excess is seen \nusing standard analysis procedures >100 MeV.\n\nUsing the LAT Low Energy (LLE) data selection, over 60 counts \nabove background were detected within a 10 s interval coinciding \nwith the time of the GBM emission. This data selection has \ninsufficient spatial resolution to provide a reliable LAT localization. \nSince an excess of events were not seen using the standard \nanalysis selection, this detection is likely due to low energy \ngamma-rays (below 100 MeV).\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\nthe energy band from 20 MeV to greater than 300 GeV.\nIt is the product of an international collaboration between\nNASA and DOE in the U.S. and many scientific institutions\nacross France, Italy, Japan and Sweden.",
  "circularId": 17356,
  "createdOn": 1422410736000,
  "email": "judith.racusin@nasa.gov",
  "subject": "GRB 150127A: Fermi-LAT detection",
  "submitter": "Judith Racusin at GSFC  <judith.racusin@nasa.gov>",
  "eventId": "GRB 150127A"
}