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Swift-XRT spectra of GRB 091230

Last updated after receiving ObsID 00020124001, version 4

Data were analysed using HEASOFT version 6.32

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Time-averaged spectrum (T0 + 32330 to 42861 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+36563 s

NH (Galactic)4.36 × 1021 cm-2
NH (intrinsic)0 (+5.22 × 1021, -0) cm-2
z of absorber0
Photon index2.4 (+0.7, -0.5)
Flux (0.3-10 keV)
(Observed)		3.7 (+1.4, -1.3) × 10-13 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)		7.6 (+17.7, -2.9) × 10-13 erg cm-2 s-1
Counts to flux (obs)3.27 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)6.79 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?		34.85 (27)
Spectrum exposure4.0 ks