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Swift-XRT spectra of GRB 221216A

Last updated after receiving ObsID 01144698006, version 23

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 79 to 38750 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+209 s

N_H (Galactic)	2.75 × 10²⁰ cm^-2
N_H (intrinsic)	1.16 (+0.13, -0.12) × 10²¹ cm^-2
z of absorber	0
Photon index	1.56 (+0.03, -0.03)
Flux (0.3-10 keV) (Observed)	6.23 (+0.13, -0.13) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.15 (+0.12, -0.11) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.37 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.01 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	729.11 (784)
Spectrum exposure	249 s

PC mode. Mean photon arrival: T0+11398 s

N_H (Galactic)	2.75 × 10²⁰ cm^-2
N_H (intrinsic)	1.9 (+2.8, -1.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.69 (+0.11, -0.10)
Flux (0.3-10 keV) (Observed)	1.31 (+0.10, -0.09) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.41 (+0.08, -0.08) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.90 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.20 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	363.07 (398)
Spectrum exposure	6.5 ks

Late Time spectrum (T0 + 4559 to 38750 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+11398 s

N_H (Galactic)	2.75 × 10²⁰ cm^-2
N_H (intrinsic)	1.9 (+2.8, -1.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.69 (+0.11, -0.10)
Flux (0.3-10 keV) (Observed)	1.31 (+0.10, -0.09) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.41 (+0.08, -0.08) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.90 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.20 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	363.07 (398)
Spectrum exposure	6.5 ks