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Swift-XRT spectra of GRB 230903A

Last updated after receiving ObsID 01189514002, version 7

Data were analysed using HEASOFT version 6.35.2

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 115 to 147136 s)

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PC mode spectrum of Time-averaged

WT mode. Mean photon arrival: T0+119 s

Can't find a valid fit for this spectrum

PC mode. Mean photon arrival: T0+1358 s

N_H (Galactic)	2.68 × 10²⁰ cm^-2
N_H (intrinsic)	7 (+6, -5) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.99 (+0.24, -0.23)
Flux (0.3-10 keV) (Observed)	4.6 (+0.7, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.5 (+0.6, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.39 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.11 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	186.16 (209)
Spectrum exposure	6.2 ks

Late Time spectrum (T0 + 4687 to 147136 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+22279 s

N_H (Galactic)	2.68 × 10²⁰ cm^-2
N_H (intrinsic)	3 (+38, -3) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.78 (+1.30, -0.92)
Flux (0.3-10 keV) (Observed)	1.22 (+1.29, -0.88) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.34 (+1.11, -0.68) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.84 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.23 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	22.87 (10)
Spectrum exposure	5.4 ks