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Swift-XRT spectra of GRB 260903A — Source 1

Last updated at 2026-09-10 at 10:10:49 UTC

About these products.

Time-averaged spectrum (T0 + 498368 to 554480 s)

Download spectral files for Time-averaged spectrum.

Plots to download

PC mode spectrum of GRB 260903A

PC mode. Mean photon arrival: T0+538503 s

N_H (Galactic)	5.67 × 10²⁰ cm^-2
N_H (intrinsic)	4.1 (+15.9, -4.1) × 10²⁰ cm^-2
z of absorber	0
Photon index	1.6 (+0.4, -0.3)
Flux (0.3-10 keV) (Observed)	2.3 (+0.7, -0.5) × 10^-12 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	2.6 (+0.5, -0.5) × 10^-12 erg cm^-2 s^-1
Counts to flux (obs)	3.86 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.30 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	89.46 (92)
Spectrum exposure	3.9 ks