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Swift-XRT spectra of GRB 220618A

Last updated after receiving ObsID 01110821005, version 12

Data were analysed using HEASOFT version 6.35.2

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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+284 s

N_H (Galactic)	4.74 × 10²¹ cm^-2
N_H (intrinsic)	1.2 (+0.6, -0.6) × 10²¹ cm^-2
z of absorber	0
Photon index	2.56 (+0.11, -0.11)
Flux (0.3-10 keV) (Observed)	6.7 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.76 (+0.20, -0.16) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.15 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.23 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	445.68 (483)
Spectrum exposure	235 s

PC mode. Mean photon arrival: T0+11121 s

N_H (Galactic)	4.74 × 10²¹ cm^-2
N_H (intrinsic)	0 (+8.47 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	2.27 (+0.27, -0.21)
Flux (0.3-10 keV) (Observed)	1.013 (+0.172, -0.083) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.92 (+0.21, -0.60) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.56 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.74 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	82.95 (133)
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 (+1.96 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	2.0 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	4.0 (+1.2, -1.0) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.3 (+1.4, -2.1) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	4.21 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.57 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	48.41 (65)
Spectrum exposure	11.0 ks