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Swift-XRT spectra of GRB 210308A

Last updated after receiving ObsID 01036227004, version 14

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 91 to 41040 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+112 s

N_H (Galactic)	4.47 × 10²¹ cm^-2
N_H (intrinsic)	3.1 (+4.0, -2.7) × 10²¹ cm^-2
z of absorber	0
Photon index	1.9 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	2.8 (+0.6, -0.5) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.80 (+1.55, -0.89) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	4.28 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7.22 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	137.92 (193)
Spectrum exposure	45 s

PC mode. Mean photon arrival: T0+2893 s

N_H (Galactic)	4.47 × 10²¹ cm^-2
N_H (intrinsic)	4.3 (+1.9, -1.7) × 10²¹ cm^-2
z of absorber	0
Photon index	1.76 (+0.19, -0.18)
Flux (0.3-10 keV) (Observed)	1.37 (+0.13, -0.12) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.13 (+0.22, -0.19) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	5.46 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	8.50 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	370.30 (395)
Spectrum exposure	7.8 ks

Late Time spectrum (T0 + 4397 to 41040 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+8996 s

N_H (Galactic)	4.47 × 10²¹ cm^-2
N_H (intrinsic)	6 (+4, -3) × 10²¹ cm^-2
z of absorber	0
Photon index	1.8 (+0.4, -0.4)
Flux (0.3-10 keV) (Observed)	2.6 (+0.5, -0.4) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	4.41 (+1.26, -0.75) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	5.65 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	9.44 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	158.51 (183)
Spectrum exposure	6.8 ks