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Swift-XRT spectra of GRB 210222B

Last updated after receiving ObsID 01034325005, version 11

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 99 to 28790 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+103 s

N_H (Galactic)	8.87 × 10²⁰ cm^-2
N_H (intrinsic)	9.9 (+100.1, -9.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.24 (+1.50, -0.82)
Flux (0.3-10 keV) (Observed)	1.9 (+2.1, -1.1) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.04 (+2.14, -0.93) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	5.79 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6.35 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	9.98 (18)
Spectrum exposure	10 s

PC mode. Mean photon arrival: T0+1877 s

N_H (Galactic)	8.87 × 10²⁰ cm^-2
N_H (intrinsic)	5 (+4, -4) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.95 (+0.14, -0.13)
Flux (0.3-10 keV) (Observed)	1.40 (+0.11, -0.10) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.78 (+0.12, -0.11) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	3.58 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.55 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	316.80 (361)
Spectrum exposure	5.3 ks

Late Time spectrum (T0 + 5637 to 28790 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12016 s

N_H (Galactic)	8.87 × 10²⁰ cm^-2
N_H (intrinsic)	1.6 (+2.0, -1.5) × 10²¹ cm^-2
z of absorber	0
Photon index	2.5 (+0.6, -0.6)
Flux (0.3-10 keV) (Observed)	1.5 (+0.5, -0.3) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.7 (+0.9, -0.6) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	2.96 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.45 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	80.20 (85)
Spectrum exposure	3.6 ks