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Swift-XRT spectra of GRB 210318A

Last updated after receiving ObsID 01037339001, version 15

Data were analysed using HEASOFT version 6.35.2

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Jump to: Time-averaged|Late Time

Time-averaged spectrum (T0 + 127 to 45611 s)

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WT and PC mode spectra of Time-averaged

WT mode. Mean photon arrival: T0+130 s

N_H (Galactic)	1.88 × 10²⁰ cm^-2
N_H (intrinsic)	1.2 (-1.2, -1.2) × 10²¹ cm^-2
z of absorber	0
Photon index	3.0 (-3.0, -1.9)
Flux (0.3-10 keV) (Observed)	1.02 (+2.69, -0.55) × 10^-10 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2 (+1.00 × 10¹⁰, +9999999998) × 10^-10 erg cm^-2 s^-1
Counts to flux (obs)	2.69 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.24 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	5.18 (8)
Spectrum exposure	6 s

PC mode. Mean photon arrival: T0+4586 s

N_H (Galactic)	1.88 × 10²⁰ cm^-2
N_H (intrinsic)	1.9 (+2.3, -1.6) × 10²¹ cm^-2
z of absorber	0
Photon index	2.0 (+0.6, -0.5)
Flux (0.3-10 keV) (Observed)	7.9 (+3.0, -2.0) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.09 (+0.30, -0.23) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.63 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.97 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	39.94 (64)
Spectrum exposure	5.7 ks

Late Time spectrum (T0 + 4615 to 45611 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+14870 s

N_H (Galactic)	1.88 × 10²⁰ cm^-2
N_H (intrinsic)	2.8 (+6.6, -2.8) × 10²¹ cm^-2
z of absorber	0
Photon index	2.3 (+1.2, -1.1)
Flux (0.3-10 keV) (Observed)	2.06 (+1.83, -0.90) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.6 (+12.5, -1.0) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.20 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	5.67 × 10^-11 erg cm^-2 ct^-1
W-stat (dof) What's this?	17.95 (16)
Spectrum exposure	4.7 ks