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Swift-XRT spectra of GRB 130903A

Last updated after receiving ObsID 00020294003, version 9

Data were analysed using HEASOFT version 6.32

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Time-averaged spectrum (T0 + 39562 to 47231 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+43212 s

NH (Galactic)2.04 × 1021 cm-2
NH (intrinsic)0 (+3.59 × 1021, -0) cm-2
z of absorber0
Photon index2.2 (+0.8, -0.5)
Flux (0.3-10 keV)
(Observed)		2.23 (+1.10, -0.96) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		3.5 (+3.3, -1.5) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.09 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)4.79 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		21.64 (19)
Spectrum exposure4.0 ks