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Swift-XRT spectra of GRB 240218A

Last updated after receiving ObsID 01215912001, version 5

Data were analysed using HEASOFT version 6.32

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The spectral fits assume a redshift: 6.782 (GCN 35756)

Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 155 to 23483 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+219 s

NH (Galactic)4.19 × 1020 cm-2
NH (intrinsic)1.39 (+0.29, -0.27) × 1023 cm-2
z of absorber6.782
Photon index1.39 (+0.04, -0.04)
Flux (0.3-10 keV)
(Observed)
4.27 (+0.13, -0.12) × 10-9 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
4.71 (+0.12, -0.11) × 10-9 erg cm-2 s-1
Counts to flux (obs)4.81 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.31 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
735.81 (722)
Spectrum exposure120 s

PC mode. Mean photon arrival: T0+2553 s

NH (Galactic)4.19 × 1020 cm-2
NH (intrinsic)4.4 (+10.4, -4.4) × 1022 cm-2
z of absorber6.782
Photon index2.03 (+0.32, -0.27)
Flux (0.3-10 keV)
(Observed)
1.38 (+0.28, -0.23) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.63 (+0.26, -0.23) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.25 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.85 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
97.95 (130)
Spectrum exposure604 s

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Late Time spectrum (T0 + 11030 to 23483 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+23445 s

NH (Galactic)4.19 × 1020 cm-2
NH (intrinsic)0 (+2.90 × 1024, -0) cm-2
z of absorber6.782
Photon index1.7 (+1.6, -1.0)
Flux (0.3-10 keV)
(Observed)
5 (+4, -3) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5 (+8, -3) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.28 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.56 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
4.73 (4)
Spectrum exposure82 s

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