TITLE: GCN CIRCULAR NUMBER: 14243 SUBJECT: GRB 130219A: Fermi GBM detection DATE: 13/02/20 19:53:04 GMT FROM: Andrew Collazzi at NASA/MSFC/ORAU Andrew C. Collazzi (NASA/ORAU) reports on behalf of the Fermi GBM Team: "At 18:35:51.73 UT on 19 February 2013, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 130219A (trigger 382991754 / 130219.775). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 303.7, DEC = +40.8 (J2000 degrees, equivalent to J2000 20h 14m, +40d 49'), with a statistical uncertainty of 1.2 degrees (radius, 1-sigma containment, statistical only; there is additionally a systematic error which is currently estimated to be 2 to 3 degrees). The angle from the Fermi LAT boresight is 85 degrees. The GBM light curve shows two distinct peaks with a total duration (T90) of about 96 s (50-300 keV). The spectrum is taken over the peaks, from T0+0.003 to T0+3.328 s and T+66.817 to T0+101.634, and is well fit by a Comptonized model with Ep = 396.0 +/- 21.0 and alpha = -1.11 +/- 0.02. This yields a fluence (10-1000 keV) in this time interval of (3.18 +/- 0.05)E-05 erg/cm^2. This interval is equally well fit to a Band function with Ep = 343.1 +/- 25.5, alpha = -1.08 +/- 0.02, and beta = -2.28 +/- 0.15. This yields a fluence (10 - 1000 keV) over this interval of (3.11 +/- 0.05)E-05 erg/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."