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Swift-XRT spectra of GRB 080310

Last updated after receiving ObsID 00305288008, version 17.

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The spectral fits assume a redshift: 2.43 (GCN 7388)

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Time-averaged spectrum (T0 + 95 to 51971 s)

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WT and PC mode spectra of GRB 080310

WT mode. Mean photon arrival: T0+356 s

N_H (Galactic)	3.3 × 10²⁰ cm^-2
N_H (intrinsic)	6.45 (+0.52, -0.51) × 10²¹ cm^-2
z of absorber	2.43
Photon index	1.692 (+0.017, -0.017)
Flux (0.3-10 keV) (Observed)	2.526 (+0.031, -0.031) × 10^-9 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.874 (+0.033, -0.027) × 10^-9 erg cm^-2 s^-1
Counts to flux (obs)	3.9 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.4 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	820.59 (855)
Exposure time	708 s

PC mode. Mean photon arrival: T0+14226 s

N_H (Galactic)	3.3 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+6.6 × 10²⁰, -0) cm^-2
z of absorber	2.43
Photon index	2.094 (+0.067, -0.065)
Flux (0.3-10 keV) (Observed)	3.49 (+0.18, -0.16) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.9174 (+0.0036, -0.3888) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.4 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	3.8 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	325.42 (389)
Exposure time	17.7 ks

Late Time spectrum (T0 + 4738 to 51971 s)

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PC mode spectrum of GRB 080310

PC mode. Mean photon arrival: T0+19012 s

N_H (Galactic)	3.3 × 10²⁰ cm^-2
N_H (intrinsic)	3.2 (+3.0, -2.8) × 10²¹ cm^-2
z of absorber	2.43
Photon index	1.95 (+0.12, -0.11)
Flux (0.3-10 keV) (Observed)	2.65 (+0.20, -0.18) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.07 (+0.20, -0.21) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.6 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.1 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	289.74 (365)
Exposure time	17.0 ks