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Swift-XRT spectra of GRB 180204A

Last updated after receiving ObsID 00808483003, version 7

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 90 to 73322 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+106 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	9 (+5, -4) × 10²¹ cm^-2
z of absorber	0
Photon index	2.4 (+0.6, -0.5)
Flux (0.3-10 keV) (Observed)	2.1 (+0.5, -0.4) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.6 (+4.0, -1.3) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	3.52 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	9.54 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	100.63 (131)
Spectrum exposure	32 s

PC mode. Mean photon arrival: T0+11459 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	5.8 (+1.6, -1.4) × 10²¹ cm^-2
z of absorber	0
Photon index	1.96 (+0.21, -0.20)
Flux (0.3-10 keV) (Observed)	2.35 (+0.26, -0.23) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.96 (+0.57, -0.28) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.45 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	264.10 (322)
Spectrum exposure	22.5 ks

Late Time spectrum (T0 + 4001 to 73322 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+18848 s

N_H (Galactic)	1.02 × 10²¹ cm^-2
N_H (intrinsic)	5.9 (+2.1, -1.8) × 10²¹ cm^-2
z of absorber	0
Photon index	1.96 (+0.27, -0.25)
Flux (0.3-10 keV) (Observed)	1.05 (+0.15, -0.13) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.78 (+0.38, -0.24) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.43 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.51 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	189.89 (238)
Spectrum exposure	21.9 ks