{
  "bibcode": "2015GCN.17734....1Y",
  "body": "George Younes (USRA at GWU) and Charles Meegan (UAH) report on behalf of the Fermi GBM Team:\n\n\"At 16:52:33.99  on April 22 2015, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 150422A (trigger 451414356/150422703).\nThe GBM on-ground location, using the Fermi GBM trigger\ndata, is RA = 215.1, Dec = -20.9 (J2000 degrees, equivalent to\n14h 20m 24s, -20d 54�), with an uncertainty of 1.1\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\n57 degrees.\n\nThe trigger resulted in an Autonomous Repoint Request (ARR) that was accepted and the\nspacecraft slewed to the GBM in-flight location.\n\nThe GBM light curve consists of multiple peaks with a duration\n(T90) of about 37 s (50-300 keV).\nThe time-averaged spectrum from T0+0s to T0+49.2s\nis well fit by a BAND function with Epeak = 100 +/- 3 keV,\nAlpha = -1.16 +/- 0.03 and Beta = -2.35 +/- 0.05.\nThe event fluence (10-1000 keV) in this time interval is\n(3.40 +/- 0.04)E-05 erg/cm^2. The 1.0-sec peak photon flux measured\nstarting from T0+11.6 s in the 10-1000 keV band\nis 17.0 +/- 0.4 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": 17734,
  "createdOn": 1429799744000,
  "email": "younes.ge@gmail.com",
  "subject": "GRB 150422A: Fermi GBM detection",
  "submitter": "George A. Younes at USRA/NASA/MSFC  <younes.ge@gmail.com>",
  "eventId": "GRB 150422A"
}