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Swift-XRT spectra of GRB 210402A

Last updated after receiving ObsID 01040123009, version 10

Data were analysed using HEASOFT version 6.35.2

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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+507 s

N_H (Galactic)	1.51 × 10²⁰ cm^-2
N_H (intrinsic)	3.07 (+0.13, -0.13) × 10²¹ cm^-2
z of absorber	0
Photon index	1.747 (+0.026, -0.026)
Flux (0.3-10 keV) (Observed)	1.968 (+0.030, -0.030) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.62 (+0.03, -0.03) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	4.25 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.65 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	923.66 (843)
Spectrum exposure	1.1 ks

PC mode. Mean photon arrival: T0+15834 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, -0.20)
Flux (0.3-10 keV) (Observed)	6.0 (+0.7, -0.6) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	9.99 (+0.96, -2.35) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.50 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.86 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	229.41 (277)
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)	4.2 (+1.6, -1.3) × 10²¹ cm^-2
z of absorber	0
Photon index	2.6 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	1.16 (+0.21, -0.17) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.90 (+1.38, -0.32) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	2.95 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.34 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	112.86 (146)
Spectrum exposure	8.1 ks