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Swift-XRT spectra of GRB 230228A

Last updated after receiving ObsID 01156572002, version 21

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 + 127 to 29559 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+2136 s

N_H (Galactic)	9.72 × 10²⁰ cm^-2
N_H (intrinsic)	9.8 (+12.2, -9.8) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.77 (+0.29, -0.26)
Flux (0.3-10 keV) (Observed)	2.9 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.7 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4.09 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.13 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	175.46 (187)
Spectrum exposure	5.7 ks

Late Time spectrum (T0 + 5281 to 29559 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+10366 s

N_H (Galactic)	9.72 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+7.72 × 10²⁰, -0) cm^-2
z of absorber	0
Photon index	1.9 (+0.5, -0.3)
Flux (0.3-10 keV) (Observed)	4.8 (+2.1, -1.4) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	5.4 (+2.3, -1.5) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.38 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.79 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	46.15 (34)
Spectrum exposure	3.9 ks