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Swift-XRT spectra of GRB 241218A

Last updated after receiving ObsID 01275005001, version 14

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 150 to 45135 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+160 s

N_H (Galactic)	2.23 × 10²⁰ cm^-2
N_H (intrinsic)	1.9 (+127.4, -1.9) × 10¹⁹ cm^-2
z of absorber	0
Photon index	2.3 (+0.6, -0.3)
Flux (0.3-10 keV) (Observed)	1.2 (+0.3, -0.3) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.37 (+0.42, -0.30) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.63 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.89 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	35.40 (62)
Spectrum exposure	19 s

PC mode. Mean photon arrival: T0+2220 s

N_H (Galactic)	2.23 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+4.86 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.74 (+0.22, -0.13)
Flux (0.3-10 keV) (Observed)	2.41 (+0.26, -0.31) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.51 (+0.26, -0.14) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.75 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.92 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	175.15 (209)
Spectrum exposure	8.3 ks

Late Time spectrum (T0 + 4775 to 45135 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12016 s

N_H (Galactic)	2.23 × 10²⁰ cm^-2
N_H (intrinsic)	2.2 (+3.1, -2.0) × 10²¹ cm^-2
z of absorber	0
Photon index	2.5 (+1.0, -0.8)
Flux (0.3-10 keV) (Observed)	2.67 (+1.28, -0.79) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.0 (+16.8, -1.2) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	2.92 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.47 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	45.60 (41)
Spectrum exposure	7.2 ks