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Swift-XRT spectra of GRB 220118A

Last updated after receiving ObsID 01093742001, version 8

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 96 to 11871 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+109 s

NH (Galactic)2.25 × 1020 cm-2
NH (intrinsic)1.7 (+0.8, -0.6) × 1021 cm-2
z of absorber0
Photon index3.4 (+0.4, -0.4)
Flux (0.3-10 keV)
(Observed)
2.83 (+0.32, -0.28) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
8.6 (+4.7, -1.1) × 10-10 erg cm-2 s-1
Counts to flux (obs)2.19 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.61 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
127.64 (164)
Spectrum exposure32 s

PC mode. Mean photon arrival: T0+1959 s

NH (Galactic)2.25 × 1020 cm-2
NH (intrinsic)0 (+5.56 × 1020, -0) cm-2
z of absorber0
Photon index1.82 (+0.27, -0.15)
Flux (0.3-10 keV)
(Observed)
1.39 (+0.18, -0.21) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.46 (+0.19, -0.20) × 10-11 erg cm-2 s-1
Counts to flux (obs)3.52 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)3.70 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
112.75 (156)
Spectrum exposure1.7 ks

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Late Time spectrum (T0 + 10447 to 11871 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11095 s

NH (Galactic)2.25 × 1020 cm-2
NH (intrinsic)2.4 (+4.1, -2.4) × 1021 cm-2
z of absorber0
Photon index2.24 (+1.16, -0.95)
Flux (0.3-10 keV)
(Observed)
1.1 (+0.9, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.76 (+2.43, -0.55) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.34 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.39 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
27.92 (28)
Spectrum exposure1.4 ks

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