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Swift-XRT spectra of GRB 121102A

Last updated after receiving ObsID 00537266001, version 3.

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Time-averaged spectrum (T0 + 53 to 30368 s)

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WT and PC mode spectra of GRB 121102A

WT mode. Mean photon arrival: T0+94 s

NH (Galactic)6.77 × 1021 cm-2
NH (intrinsic)7.2 (+1.9, -1.7) × 1021 cm-2
z of absorber0
Photon index1.92 (+0.14, -0.14)
Flux (0.3-10 keV)
(Observed)
6.6 (+0.4, -0.4) × 10-10 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
1.24 (+0.15, -0.11) × 10-9 erg cm-2 s-1
Counts to flux (obs)5.39 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)1.01 × 10-10 erg cm-2 ct-1
W-stat (dof)
What's this?
528.80 (569)
Spectrum exposure189 s

PC mode. Mean photon arrival: T0+4298 s

NH (Galactic)6.77 × 1021 cm-2
NH (intrinsic)6.5 (+3.3, -2.8) × 1021 cm-2
z of absorber0
Photon index1.77 (+0.24, -0.23)
Flux (0.3-10 keV)
(Observed)
3.9 (+0.4, -0.4) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
6.61 (+1.23, -0.77) × 10-12 erg cm-2 s-1
Counts to flux (obs)5.90 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)9.94 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
308.90 (341)
Spectrum exposure13.2 ks

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Late Time spectrum (T0 + 4790 to 30368 s)

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PC mode spectrum of Late Time

PC mode. Mean photon arrival: T0+12809 s

NH (Galactic)6.77 × 1021 cm-2
NH (intrinsic)5 (+6, -5) × 1021 cm-2
z of absorber0
Photon index1.6 (+0.4, -0.4)
Flux (0.3-10 keV)
(Observed)
1.39 (+0.31, -0.25) × 10-12 erg cm-2 s-1
Flux (0.3-10 keV)
(Unabsorbed)
2.1 (+0.7, -0.4) × 10-12 erg cm-2 s-1
Counts to flux (obs)6.10 × 10-11 erg cm-2 ct-1
Counts to flux (unabs)9.09 × 10-11 erg cm-2 ct-1
W-stat (dof)
What's this?
127.30 (153)
Spectrum exposure11.9 ks

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