GCN Circular 22600
C. Malacaria (NASA-MSFC/USRA) reports on behalf of the Fermi GBM Team: "We report the refined spectral analysis of the short-duration GRB 180402A (Swift-BAT detection: Lien et al., GCN Circ. 22580; Fermi-GBM detection: Malacaria, GCN Circ. 22585; Konus-Wind observation: Svinkin, GCN Circ. 22588). The time-averaged spectrum from T0-0.064 s to T0+0.192 s is well fit by a power-law function with an exponential high-energy cutoff. The best-fit parameters are: Alpha = -0.36 +/- 0.10, Epeak = 1319 +/- 161 keV. The fluence (10-1000 keV) in this time interval is (1.21 +/- 0.06)E-06 erg/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."