{
  "bibcode": "2017GCN.21319....1H",
  "body": "R. Hamburg (UAH), C. Meegan (UAH), and E. Bissaldi (Politecnico & INFN\nBari):\nreport on behalf of the Fermi GBM Team:\n\n\"At 08:10:08.00 UT on 10 July 2017, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 170710B (trigger 521367012 / 170710340)\nwhich was also detected by the Swift/BAT\n(D. Palmer et al. 2017, GCN  21316)\nThe GBM on-ground location is consistent with the Swift position.\n\nThe angle from the Fermi LAT boresight at the GBM trigger time is 49\ndegrees.\n\nThe GBM light curve consists of one main peak\nwith a duration (T90) of about 42 s (50-300 keV).\nThe time-averaged spectrum from T0-4 s to T0+28 s is\nadequately fit by a power law function with an exponential\nhigh-energy cutoff.  The power law index is -1.2 +/- 0.1 and\nthe cutoff energy, parameterized as Epeak, is 293 +/- 61 keV.\nA Band function fits the spectrum equally well\nwith Epeak= 149 +/- 49 keV, alpha = -0.9 +/- 0.2 and beta = -1.9 +/- 0.2.\n\nThe event fluence (10-1000 keV) in this time interval is\n(6.0 +/- 0.4)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+0.5 s in the 10-1000 keV band\nis 2.7 +/- 0.3 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 21319,
  "createdOn": 1499787205000,
  "email": "rkh0007@uah.edu",
  "subject": "GRB 170710B: Fermi GBM observation",
  "submitter": "Rachel Hamburg at UAH  <rkh0007@uah.edu>",
  "eventId": "GRB 170710B"
}