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Swift-XRT spectra of GRB 260909A — Source 2

Last updated at 2026-09-15 at 23:49:27 UTC

About these products.

Time-averaged spectrum (T0 + 137704 to 264701 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 260909A

PC mode. Mean photon arrival: T0+218417 s

N_H (Galactic)	4.45 × 10²⁰ cm^-2
N_H (intrinsic)	1.6 (+3.9, -1.6) × 10²² cm^-2
z of absorber	0
Photon index	2.6 (+3.4, -2.3)
Flux (0.3-10 keV) (Observed)	2.0 (+2.0, -1.2) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	8 (+1.00 × 10¹³, -4) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.62 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	1.47 × 10^-10 erg cm^-2 ct^-1
W-stat What's this?(dof)	9.66 (7)
Spectrum exposure	2.9 ks