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Swift-XRT spectra of GRB 220101A

Last updated after receiving ObsID 01091527013, version 11

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

The spectral fits assume a redshift: 4.61 (GCN 31353)

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 87 to 40110 s)

Download spectral files for Time-averaged spectrum.

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+156 s

N_H (Galactic)	6.29 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+5.55 × 10²⁰, -0) cm^-2
z of absorber	4.61
Photon index	1.491 (+0.015, -0.017)
Flux (0.3-10 keV) (Observed)	1.365 (+0.027, -0.019) × 10^-8 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.461 (+0.026, -0.021) × 10^-8 erg cm^-2 s^-1
Counts to flux (obs)	4.31 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.61 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	938.83 (816)
Spectrum exposure	152 s

PC mode. Mean photon arrival: T0+18943 s

N_H (Galactic)	6.29 × 10²⁰ cm^-2
N_H (intrinsic)	6 (+8, -6) × 10²¹ cm^-2
z of absorber	4.61
Photon index	1.63 (+0.05, -0.05)
Flux (0.3-10 keV) (Observed)	6.11 (+0.22, -0.21) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.72 (+0.19, -0.19) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.07 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.47 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	590.69 (631)
Spectrum exposure	10.5 ks

Late Time spectrum (T0 + 4002 to 40110 s)

Download spectral files for Late Time spectrum.

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+19482 s

N_H (Galactic)	6.29 × 10²⁰ cm^-2
N_H (intrinsic)	6 (+9, -6) × 10²¹ cm^-2
z of absorber	4.61
Photon index	1.62 (+0.05, -0.05)
Flux (0.3-10 keV) (Observed)	5.85 (+0.21, -0.20) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.43 (+0.19, -0.18) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	4.07 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.47 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	570.68 (623)
Spectrum exposure	10.3 ks