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Swift-XRT spectra of GRB 240821A

Last updated after receiving ObsID 00021704001, version 16

Data were analysed using HEASOFT version 6.35.2

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Time-averaged spectrum (T0 + 91606 to 153649 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+126837 s

NH (Galactic)2.61 × 1020 cm-2
NH (intrinsic)4 (+90, -4) × 1020 cm-2
z of absorber0
Photon index2.0 (+2.4, -2.1)
Flux (0.3-10 keV)
(Observed)		6.0 (+13.6, -4.4) × 10-14 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		7 (+1.00 × 1014, -5) × 10-14 erg cm-2 s-1
Counts to flux (obs)3.92 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.55 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		12.80 (2)
Spectrum exposure5.0 ks