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Swift-XRT spectra of GRB 250317B

Last updated after receiving ObsID 00019621003, version 8

Data were analysed using HEASOFT version 6.35.2

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Time-averaged spectrum (T0 + 10228 to 16599 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+11825 s

NH (Galactic)1.01 × 1020 cm-2
NH (intrinsic)0 (+4.65 × 1020, -0) cm-2
z of absorber0
Photon index1.84 (+0.28, -0.21)
Flux (0.3-10 keV)
(Observed)		3.1 (+0.6, -0.6) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		3.2 (+0.5, -0.5) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.47 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.55 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		85.85 (90)
Spectrum exposure1.7 ks