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Swift-XRT spectra of GRB 180311A

Last updated after receiving ObsID 00813721002, version 6

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 284 to 20069 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+7182 s

N_H (Galactic)	1.59 × 10²⁰ cm^-2
N_H (intrinsic)	1.6 (+4.5, -1.6) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.01 (+0.21, -0.18)
Flux (0.3-10 keV) (Observed)	2.47 (+0.31, -0.28) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.69 (+0.28, -0.26) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.17 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.46 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	142.88 (204)
Spectrum exposure	8.3 ks

Late Time spectrum (T0 + 6132 to 20069 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+13843 s

N_H (Galactic)	1.59 × 10²⁰ cm^-2
N_H (intrinsic)	4 (+7, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.11 (+0.32, -0.29)
Flux (0.3-10 keV) (Observed)	1.24 (+0.23, -0.20) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.45 (+0.23, -0.18) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.04 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.56 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	112.89 (134)
Spectrum exposure	6.9 ks