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Swift-XRT spectra of GRB 220618A

Last updated after receiving ObsID 01110821001, version 16

Data were analysed using HEASOFT version 6.29

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 149 to 61894 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+283 s

N_H (Galactic)	4.74 × 10²¹ cm^-2
N_H (intrinsic)	1.2 (+0.6, -0.5) × 10²¹ cm^-2
z of absorber	0
Photon index	2.62 (+0.11, -0.11)
Flux (0.3-10 keV) (Observed)	1.05 (+0.05, -0.05) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.90 (+0.35, -0.28) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.05 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.44 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	460.92 (475)
Spectrum exposure	235 s

PC mode. Mean photon arrival: T0+10944 s

N_H (Galactic)	4.74 × 10²¹ cm^-2
N_H (intrinsic)	0 (+8.20 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	2.32 (+0.26, -0.21)
Flux (0.3-10 keV) (Observed)	9.9 (+1.9, -1.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.0 (+0.4, -0.7) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.38 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.66 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	118.04 (126)
Spectrum exposure	11.4 ks

Late Time spectrum (T0 + 4001 to 61894 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+26496 s

N_H (Galactic)	4.74 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.93 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.99 (+0.49, -0.28)
Flux (0.3-10 keV) (Observed)	3.88 (+0.98, -1.03) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.1 (+1.9, -2.1) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.06 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.42 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	58.41 (57)
Spectrum exposure	11.0 ks