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Swift-XRT spectra of GRB 041218

Last updated after receiving ObsID 00020001001, version 34

Data were analysed using HEASOFT version 6.32

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Time-averaged spectrum (T0 + 19352 to 20616 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+19793 s

N_H (Galactic)	4.18 × 10²¹ cm^-2
N_H (intrinsic)	0 (+1.87 × 10²², -0) cm^-2
z of absorber	0
Photon index	2.2 (+4.0, -0.8)
Flux (0.3-10 keV) (Observed)	6 (+5, -3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.1 (+7.5, -0.7) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.31 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.12 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	6.28 (12)
Spectrum exposure	133 s

PC mode. Mean photon arrival: T0+19824 s

N_H (Galactic)	4.18 × 10²¹ cm^-2
N_H (intrinsic)	0 (+9.52 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.33 (+1.32, -0.63)
Flux (0.3-10 keV) (Observed)	3.0 (+1.3, -1.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.5 (+2.3, -1.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	6.05 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.16 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	13.66 (12)
Spectrum exposure	401 s