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Swift-XRT spectra of GRB 241228A

Last updated after receiving ObsID 01277277009, version 17

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 100 to 34719 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+136 s

NH (Galactic)6.67 × 1020 cm-2
NH (intrinsic)1.6 (+0.7, -0.6) × 1021 cm-2
z of absorber0
Photon index2.03 (+0.18, -0.17)
Flux (0.3-10 keV)
(Observed)
4.2 (+0.4, -0.4) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.9 (+0.5, -0.5) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.38 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.78 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
285.12 (328)
Spectrum exposure83 s

PC mode. Mean photon arrival: T0+6793 s

NH (Galactic)6.67 × 1020 cm-2
NH (intrinsic)2.9 (+0.8, -0.7) × 1021 cm-2
z of absorber0
Photon index1.84 (+0.15, -0.14)
Flux (0.3-10 keV)
(Observed)
9.6 (+0.8, -0.7) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.36 (+0.09, -0.09) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.30 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.05 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
355.07 (391)
Spectrum exposure11.0 ks

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Late Time spectrum (T0 + 4768 to 34719 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11154 s

NH (Galactic)6.67 × 1020 cm-2
NH (intrinsic)3.20 (+1.15, -0.98) × 1021 cm-2
z of absorber0
Photon index1.86 (+0.19, -0.19)
Flux (0.3-10 keV)
(Observed)
4.3 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.1 (+0.5, -0.6) × 10-12 erg cm-2 s-1
Counts to flux (obs)4.30 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.17 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
249.26 (306)
Spectrum exposure9.6 ks

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