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Swift-XRT spectra of GRB 250427A

Last updated after receiving ObsID 00019750002, version 13

Data were analysed using HEASOFT version 6.35.2

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Time-averaged spectrum (T0 + 22940 to 28919 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+23930 s

NH (Galactic)2.87 × 1021 cm-2
NH (intrinsic)0 (+1.39 × 1021, -0) cm-2
z of absorber0
Photon index1.73 (+0.43, -0.26)
Flux (0.3-10 keV)
(Observed)		2.9 (+0.8, -0.8) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		3.5 (+1.0, -0.8) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.37 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.35 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		61.98 (65)
Spectrum exposure1.7 ks