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Swift-XRT spectra of GRB 250407A

Last updated after receiving ObsID 00021826991, version 3

Data were analysed using HEASOFT version 6.32

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Time-averaged spectrum (T0 + 18788 to 47113 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+32007 s

NH (Galactic)7.04 × 1020 cm-2
NH (intrinsic)3.3 (+1.2, -1.0) × 1021 cm-2
z of absorber0
Photon index1.91 (+0.21, -0.20)
Flux (0.3-10 keV)
(Observed)		2.9 (+0.4, -0.3) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		4.4 (+0.4, -0.4) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.23 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.28 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		285.56 (280)
Spectrum exposure1.8 ks