{
  "bibcode": "2010GCN.10546....1V",
  "body": "A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team: \n\n\"At 06:36:08.02 UT on 25 March 2010, the Fermi Gamma-Ray Burst Monitor\ntriggered and located GRB 100325A (trigger 291191770/100325275).\n\nThe on-ground calculated location, using the GBM trigger \ndata, is RA = 332.3, DEC = -28.6 (J2000 degrees, \nequivalent to 22h 09m, -28d 36'), with an uncertainty \nof 1.5 degrees (radius, 1-sigma containment, \nstatistical only; there is additionally a systematic\nerror which is currently estimated to be 2 to 3 degrees).\n\nThe angle from the Fermi LAT boresight is 9 degrees.\n\nThe GBM light curve consists of a single structured pulse with a \nduration (T90) of 8.3 +/- 1.9 s (8-1000 keV).\n\nThe time-averaged spectrum from T0-1.664 s to T0+7.552 s is \nbest fit by a power law function with an exponential\nhigh energy cutoff. The power law index is -0.45(+0.12/-0.11) and\nthe cutoff energy, parameterized as Epeak, is 159.3 (+12.7/-10.8) keV\n(CSTAT 502 for 482 d.o.f).\n\nThe event fluence (8-1000 keV) in this time interval is \n(1.99 +/- 0.04)E-06 erg/cm^2. The 1.024-sec peak photon flux measured \nstarting from T0+0.512 s in the 8-1000 keV band \nis 5.0 +/- 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": 10546,
  "createdOn": 1269613610000,
  "email": "azk@mpe.mpg.de",
  "subject": "GRB 100325A: Fermi GBM detection",
  "submitter": "Andreas von Kienlin at MPE  <azk@mpe.mpg.de>",
  "eventId": "GRB 100325A"
}