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Swift-XRT spectra of GRB 150220A — Source 7

Last updated after receiving ObsID 00020484002, version 5

Data were analysed using HEASOFT version 6.15.1

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Add time-sliced spectrum.

Time-averaged spectrum (T0 + 284899 to 624300 s)

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PC mode spectrum of Time-averaged

PC mode. Mean photon arrival: T0+293971 s

N_H (Galactic)	2.29 × 10²⁰ cm^-2
N_H (intrinsic)	1.9 (+3.5, -1.2) × 10²³ cm^-2
z of absorber	0
Photon index	40 (+57, -43)
Flux (0.3-10 keV) (Observed)	1.37 (+1.91, -0.78) × 10^-14 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.0 (+1.00 × 10⁷⁵, +1000000000000000127407036708854983366254064757844793202538020642629466718208.0) × 10^-75 erg cm^-2 s^-1
Counts to flux (obs)	1.53 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.24 × 10^-72 erg cm^-2 ct^-1
W-stat (dof) What's this?	9.40 (3)
Spectrum exposure	7.2 ks