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Swift-XRT spectra of GRB 051021A

Last updated after receiving ObsID 00020018011, version 21

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

Time-averaged spectrum (T0 + 11188 to 30373 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+18237 s

N_H (Galactic)	5.68 × 10²⁰ cm^-2
N_H (intrinsic)	5 (+7, -5) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.97 (+0.26, -0.24)
Flux (0.3-10 keV) (Observed)	2.3 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.8 (+0.4, -0.3) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.19 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.92 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	137.88 (184)
Spectrum exposure	8.0 ks