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Swift-XRT spectra of GRB 170318A

Last updated after receiving ObsID 00743065001, version 3

Data were analysed using HEASOFT version 6.32

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 114 to 41065 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+156 s

N_H (Galactic)	4.45 × 10²¹ cm^-2
N_H (intrinsic)	3.8 (+3.3, -2.6) × 10²¹ cm^-2
z of absorber	0
Photon index	0.93 (+0.22, -0.20)
Flux (0.3-10 keV) (Observed)	6.4 (+0.7, -0.7) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.3 (+0.7, -0.6) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	7.85 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.99 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	350.18 (417)
Spectrum exposure	94 s

PC mode. Mean photon arrival: T0+2707 s

N_H (Galactic)	4.45 × 10²¹ cm^-2
N_H (intrinsic)	3 (+4, -3) × 10²¹ cm^-2
z of absorber	0
Photon index	0.90 (+0.32, -0.30)
Flux (0.3-10 keV) (Observed)	9.0 (+1.6, -1.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.02 (+0.14, -0.13) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	8.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	9.66 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	202.17 (201)
Spectrum exposure	7.0 ks

Late Time spectrum (T0 + 5584 to 41065 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+23138 s

N_H (Galactic)	4.45 × 10²¹ cm^-2
N_H (intrinsic)	8.8 (+25.7, -8.8) × 10²¹ cm^-2
z of absorber	0
Photon index	1.7 (+1.7, -1.2)
Flux (0.3-10 keV) (Observed)	4.2 (+4.2, -1.9) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	6.9 (+55.6, -2.6) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	6.50 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.06 × 10^-10 erg cm^-2 ct^-1
W-stat (dof) What's this?	20.99 (24)
Spectrum exposure	6.5 ks