{
  "bibcode": "2015GCN.17878....1Y",
  "body": "H.-F. Yu (MPE) reports on behalf of the Fermi GBM Team:\n\n\"At 06:47:08.70 UT on 27 May 2015, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 150527A (trigger 454402031 / 150527283), \nwhich was also detected by Swift (Evans et al. 2015, GCN 17874).\nThe GBM on-ground location is consistent with the Swift position.\n\nThe angle from the Fermi LAT boresight is 89 degrees.\n\nThe GBM light curve shows one single pulse with a duration (T90) \nof about 9.2 s (50-300 keV). The time-averaged spectrum from \nT0-3.072 s to T0+7.168 s is best fit by a power law function \nwith an exponential high-energy cutoff. The power law index \nis -0.76 +/- 0.20 and the cutoff energy, parameterized as Epeak, \nis 319 +/- 97 keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(2.2 +/- 0.4)E-06 erg/cm^2. The 1.024-sec peak photon flux \nmeasured starting from T0+2.304 s in the 10-1000 keV band\nis 2.1 +/- 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": 17878,
  "createdOn": 1432736979000,
  "email": "sptfung@mpe.mpg.de",
  "subject": "GRB 150527A: Fermi GBM observation",
  "submitter": "Hoi-Fung Yu at MPE  <sptfung@mpe.mpg.de>",
  "eventId": "GRB 150527A"
}