Notes. Cash statistic values assuming PL and BPL models for the source intrinsic spectrum are reported, as well as the corresponding F-statistic values and p-values for the spectral curvature test. The BPL model was preferred over the single PL model if p−value <2.7×10⁻³, corresponding to the 3σ confidence level. For the observations with BPL model favored over the PL one, the BPL best-fit spectral indices Γ_{1, BPL}, Γ_{2, BPL} and energy break E_break are indicated rather than the PL index Γ_PL. The normalization energy E₀ of the PL and BPL functional forms in Equations 1 and 2 was set to E₀ = 1 keV.