{
  "bibcode": "2015GCN.17525....1B",
  "body": "E. Burns (UAH) and C. Meegan (UAH)\nreport on behalf of the Fermi GBM Team:\n\n\"At 19:38:04.51 UT on 01 March 2015, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 150301B (trigger 446931487/150301818)\nwhich was also detected by the Swift/BAT (Lien et al. 2015, GCN 17515).\nThe GBM on-ground location is consistent with the Swift position.\nThe angle from the Fermi LAT boresight is 39 degrees.\n\nThe GBM light curve consists of one main peak\nwith a duration (T90) of about 13 s (50-300 keV).\nThe time-averaged spectrum from T0-2.560 s to T0+13.824 s is\nbest 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 256 +/- 32 keV.\nA Band function fits the spectrum equally well with\nEpeak= 180 +/- 38 keV, alpha = -1.1 +/- 0.1 and beta = -2.0 +/- 0.2.\n\nThe event fluence (10-1000 keV) in this time interval is\n(4.4 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured\nstarting from T0+2.560 s in the 10-1000 keV band\nis 4.5 +/- 0.2 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 17525,
  "createdOn": 1425274010000,
  "email": "eb0016@uah.edu",
  "subject": "GRB 150301B: Fermi GBM detection",
  "submitter": "Eric Burns at U of Alabama  <eb0016@uah.edu>",
  "eventId": "GRB 150301B"
}