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Swift-XRT spectra of GRB 241209B

Last updated after receiving ObsID 00021739001, version 9

Data were analysed using HEASOFT version 6.35.2

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Time-averaged spectrum (T0 + 50786 to 57914 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+52609 s

NH (Galactic)2.75 × 1020 cm-2
NH (intrinsic)6.0 (+15.5, -6.0) × 1021 cm-2
z of absorber0
Photon index3.0 (+4.0, -2.9)
Flux (0.3-10 keV)
(Observed)		1.9 (+18.9, -1.1) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		8 (+1.00 × 1013, -5) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.07 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.30 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?		8.19 (10)
Spectrum exposure3.1 ks