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Swift-XRT spectra of GRB 220118A

Last updated after receiving ObsID 01093742257, version 0

Data were analysed using HEASOFT version 6.35.2

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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

N_H (Galactic)	2.25 × 10²⁰ cm^-2
N_H (intrinsic)	1.9 (+0.8, -0.7) × 10²¹ cm^-2
z of absorber	0
Photon index	3.5 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	2.78 (+0.31, -0.28) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.1 (+5.5, -1.2) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.15 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.02 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	134.20 (165)
Spectrum exposure	32 s

PC mode. Mean photon arrival: T0+1684 s

N_H (Galactic)	2.25 × 10²⁰ cm^-2
N_H (intrinsic)	7 (+53, -7) × 10¹⁹ cm^-2
z of absorber	0
Photon index	1.88 (+0.25, -0.17)
Flux (0.3-10 keV) (Observed)	1.44 (+0.20, -0.20) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.54 (+0.20, -0.18) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.48 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.72 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	125.02 (177)
Spectrum exposure	1.7 ks

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

N_H (Galactic)	2.25 × 10²⁰ cm^-2
N_H (intrinsic)	2.5 (+4.2, -2.5) × 10²¹ cm^-2
z of absorber	0
Photon index	2.28 (+1.18, -0.97)
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)	1.8 (+5.6, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.37 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.64 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	24.91 (30)
Spectrum exposure	1.4 ks