{
  "bibcode": "2013GCN.14442....1V",
  "body": "A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team:\n\n\"At 07:51:16.23 UT on 25 April 2013, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 130425A (trigger 388569079 / 130425327).\n\nThe on-ground calculated location, using the GBM trigger data, \nis RA = 19.0, DEC = -72.2 (J2000 degrees, equivalent \nto 01 h 16 m, -72 d 12 '), with an uncertainty of 2.9 degrees \n(radius, 1-sigma containment, statistical only; there is additionally \na systematic error which is currently estimated to be 2 to 3 degrees).\n\nThe angle from the Fermi LAT boresight is 150 degrees.\n\nThe GBM light curve shows two peaks  with a duration (T90) \nof about 66 s (50-300 keV). The time-averaged spectrum from \nT0-2.880 s to T0+69.825 s is best fit by a power law function \nwith an exponential high-energy cutoff.  The power law index\n is -1.28 +/- 0.03  and the cutoff energy, parameterized as Epeak, is 254\n(+14/-13) keV.\n\nThe event fluence (10-1000 keV) in this time interval is\n(5.2 +/- 0.1)E-05 erg/cm^2. The 1.024-sec peak photon flux measured\nstarting from T0+43.5207 s in the 10-1000 keV band\nis 21.8 +/- 1.1 ph/s/cm^2.\n\nThe spectral analysis results presented above are preliminary;\nfinal results will be published in the GBM GRB Catalog.\"",
  "circularId": 14442,
  "createdOn": 1366903489000,
  "email": "azk@mpe.mpg.de",
  "subject": "GRB 130425A: Fermi GBM detection",
  "submitter": "Andreas von Kienlin at MPE  <azk@mpe.mpg.de>",
  "eventId": "GRB 130425A"
}