{
  "bibcode": "2015GCN.17717....1J",
  "body": "P. Jenke (UAH) reports on behalf of the Fermi GBM Team:\n\n\"At 18:33:25.97 on April 16 2015, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 150416A (trigger 450902008/150416773) which\nwas also detected by Fermi-LAT (D. Kocevski et al., GCN 17711)\nThe GBM on-ground location, using the Fermi GBM trigger\ndata, is RA = 58.8, Dec = 53.0 (J2000 degrees, equivalent to \n3h 55m 00s, 53d 0�), with an uncertainty of 1.9 \ndegrees (radius, 1-sigma containment,statistical \nonly; there is additionally a systematic error which is\ncurrently estimated to be 2 to 3 degrees).  \n\nThe angle of the burst direction to the Fermi LAT boresight is \n68 degrees.\n\nThe GBM light curve consists of two peaks with a duration\n(T90) of about 33 s (50-300 keV).\nThe time-averaged spectrum from T0+0s to T0+34.8s \nis well fit by a BAND function with Epeak = 940 +/- 160 keV, \nAlpha = -0.9 +/- 0.05 and Beta = -2.1 +/- 0.2. \nThe event fluence (10-1000 keV) in this time interval is\n(1.4 +/- 0.04)E-05 erg/cm^2. The 1.0-sec peak photon flux measured\nstarting from T0+12.8 s in the 10-1000 keV band\nis 3.8 +/- 0.2 ph/s/cm^2.\n\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 17717,
  "createdOn": 1429295527000,
  "email": "peter.a.jenke@nasa.gov",
  "subject": "GRB 150416A: Fermi GBM detection",
  "submitter": "Peter Jenke at MSFC  <peter.a.jenke@nasa.gov>",
  "eventId": "GRB 150416A"
}