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Swift-XRT spectra of GRB 210402A

Last updated after receiving ObsID 01040123009, version 10

Data were analysed using HEASOFT version 6.32

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Add time-sliced spectrum.

Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 160 to 57951 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+509 s

N_H (Galactic)	1.51 × 10²⁰ cm^-2
N_H (intrinsic)	3.03 (+0.13, -0.12) × 10²¹ cm^-2
z of absorber	0
Photon index	1.767 (+0.026, -0.026)
Flux (0.3-10 keV) (Observed)	1.945 (+0.029, -0.029) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.60 (+0.03, -0.03) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.17 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.58 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	958.80 (842)
Spectrum exposure	1.1 ks

PC mode. Mean photon arrival: T0+15880 s

N_H (Galactic)	1.51 × 10²⁰ cm^-2
N_H (intrinsic)	3.3 (+0.8, -0.8) × 10²¹ cm^-2
z of absorber	0
Photon index	2.18 (+0.20, -0.19)
Flux (0.3-10 keV) (Observed)	5.8 (+0.6, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.8 (+0.9, -1.0) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.42 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.74 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	224.20 (279)
Spectrum exposure	8.6 ks

Late Time spectrum (T0 + 5422 to 57951 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+39799 s

N_H (Galactic)	1.51 × 10²⁰ cm^-2
N_H (intrinsic)	4.1 (+1.5, -1.3) × 10²¹ cm^-2
z of absorber	0
Photon index	2.6 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	1.14 (+0.20, -0.16) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.83 (+1.34, -0.32) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	2.88 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.16 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	113.22 (146)
Spectrum exposure	8.1 ks