{
  "bibcode": "2015GCN.17438....1Z",
  "body": "S. Zhu (UMD), E. Bissaldi (INFN Bari), J. Racusin (NASA/GSFC),\nE. Sonbas (Adiyaman Univ.), D. Kocevski (NASA/GSFC),\nM. Yassine (LUPM) report on behalf of the Fermi-LAT team:\n\nAt 22:26:24.28 UT on 10 February 2015, Fermi-LAT detected\nhigh-energy emission from GRB 150210A,\nwhich was also detected by Fermi-GBM (trigger 445299987 / 150210935)\n(Burns, GCN 17432).\n\nThe best LAT on-ground location is found to be\n\nRA, Dec = (112.15, 13.27) (J2000)\n\nwith an error radius of 0.33 deg (90% containment, statistical error only).\nThis position was 55 deg from the LAT boresight at the time of the trigger\nand is consistent with the GBM position. It remained in the\nLAT field of view for about 1000 seconds after trigger, and reentered\nthe field of view at T0+5000 seconds.\n\nThe data from the Fermi-LAT show a significant increase\nin the event rate within 10 degrees of the GBM location after the\nGBM trigger that is spatially and temporally correlated\nwith the GBM emission with high significance.\nMore than 20 photons above 100 MeV are observed in the first 100\nseconds, of which ~15 photons are coincident with the GBM peak.\nThe highest-energy photon is a  ~1 GeV event which is observed\n2 seconds after the GBM trigger. Using the LAT Low Energy (LLE)\ndata selection, an increase in the event rate at > 20 sigma significance\nabove background was observed approximately coincident with the\ntime of the GBM emission.\n\nA Swift ToO has been requested for this burst.\n\nThe Fermi-LAT point of contact for this burst is Sylvia Zhu\n(sjzhu@umd.edu).\n\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": 17438,
  "createdOn": 1423664183000,
  "email": "sjzhu@umd.edu",
  "subject": "GRB 150210A: Fermi-LAT detection",
  "submitter": "Sylvia J. Zhu at NASA/GSFC/UMD  <sjzhu@umd.edu>",
  "eventId": "GRB 150210A"
}