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Swift-XRT spectra of GRB 130315A

Last updated after receiving ObsID 00551126001, version 4.

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Time-averaged spectrum (T0 + 167 to 56830 s)

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WT and PC mode spectra of GRB 130315A

WT mode. Mean photon arrival: T0+243 s

N_H (Galactic)	2.3 × 10²¹ cm^-2
N_H (intrinsic)	6.1 (+1.9, -1.8) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.49 (+0.04, -0.04)
Flux (0.3-10 keV) (Observed)	2.45 (+0.06, -0.06) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.06 (+0.06, -0.06) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	5 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	777.12 (792)
Spectrum exposure	292 s

PC mode. Mean photon arrival: T0+13719 s

N_H (Galactic)	2.3 × 10²¹ cm^-2
N_H (intrinsic)	5.9 (+11.5, -5.9) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.95 (+0.30, -0.26)
Flux (0.3-10 keV) (Observed)	1.23 (+0.20, -0.17) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.87 (+0.35, -0.25) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	161.90 (212)
Spectrum exposure	16.9 ks

Late Time spectrum (T0 + 4000 to 56830 s)

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PC mode spectrum of GRB 130315A

PC mode. Mean photon arrival: T0+19530 s

N_H (Galactic)	2.3 × 10²¹ cm^-2
N_H (intrinsic)	7.8 (+14.9, -7.8) × 10²⁰ cm^-2
z of absorber	0
Photon index	2.0 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	6.8 (+1.4, -1.1) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	1.08 (+0.32, -0.17) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	4 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	7 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	127.98 (166)
Spectrum exposure	16.7 ks