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Swift-XRT spectra of GRB 170208A

Last updated after receiving ObsID 00737438002, version 9

Data were analysed using HEASOFT version 6.26.1

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Jump to: Time-averaged|Late Time


Time-averaged spectrum (T0 + 123 to 12976 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+151 s

NH (Galactic)1.25 × 1021 cm-2
NH (intrinsic)2.4 (+1.8, -1.4) × 1021 cm-2
z of absorber0
Photon index1.8 (+0.3, -0.3)
Flux (0.3-10 keV)
(Observed)
2.1 (+0.4, -0.4) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
3.0 (+0.6, -0.4) × 10-10 erg cm-2 s-1
Counts to flux (obs)3.89 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)5.49 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
154.65 (198)
Spectrum exposure56 s

PC mode. Mean photon arrival: T0+3116 s

NH (Galactic)1.25 × 1021 cm-2
NH (intrinsic)3.67 (+1.01, -0.92) × 1021 cm-2
z of absorber0
Photon index2.00 (+0.17, -0.17)
Flux (0.3-10 keV)
(Observed)
1.29 (+0.12, -0.11) × 10-11 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.08 (+0.24, -0.19) × 10-11 erg cm-2 s-1
Counts to flux (obs)4.08 × 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?
326.21 (350)
Spectrum exposure5.4 ks

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Late Time spectrum (T0 + 4734 to 12976 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+7838 s

NH (Galactic)1.25 × 1021 cm-2
NH (intrinsic)3.3 (+1.7, -1.5) × 1021 cm-2
z of absorber0
Photon index2.08 (+0.31, -0.29)
Flux (0.3-10 keV)
(Observed)
3.1 (+0.5, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
5.17 (+1.33, -0.62) × 10-12 erg cm-2 s-1
Counts to flux (obs)3.81 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.41 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
148.41 (190)
Spectrum exposure4.1 ks

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