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Swift-XRT spectra of GRB 121212A

Last updated after receiving ObsID 00541371001, version 3.

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Time-averaged spectrum (T0 + 72 to 52319 s)

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WT and PC mode spectra of GRB 121212A

WT mode. Mean photon arrival: T0+75 s

N_H (Galactic)	4 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+2.5 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	2.98 (+2.73, -0.83)
Flux (0.3-10 keV) (Observed)	6 (+4, -3) × 10^-11 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8.1 (+23.4, -5.4) × 10^-11 erg cm^-2 s^-1
Counts to flux (obs)	1.6 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	2.1 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	22.63 (17)
Exposure time	7 s

PC mode. Mean photon arrival: T0+7592 s

N_H (Galactic)	4 × 10²⁰ cm^-2
N_H (intrinsic)	1.8 (+0.4, -0.4) × 10²¹ cm^-2
z of absorber	0
Photon index	2.41 (+0.16, -0.15)
Flux (0.3-10 keV) (Observed)	4.08 (+0.28, -0.26) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	7.6 (+0.5, -0.7) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	6 × 10^-11 erg cm^-2 ct^-1
C-stat (dof)	346.91 (357)
Exposure time	18.0 ks

Late Time spectrum (T0 + 5291 to 52319 s)

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PC mode spectrum of GRB 121212A

PC mode. Mean photon arrival: T0+18833 s

N_H (Galactic)	4 × 10²⁰ cm^-2
N_H (intrinsic)	1.6 (+0.7, -0.6) × 10²¹ cm^-2
z of absorber	0
Photon index	2.07 (+0.23, -0.22)
Flux (0.3-10 keV) (Observed)	1.50 (+0.18, -0.16) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.24 (+0.24, -0.24) × 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)	230.48 (257)
Exposure time	16.1 ks