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Swift-XRT spectra of GRB 260903A — Source 4

Last updated at 2026-09-10 at 10:09:24 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+536365 s

N_H (Galactic)	5.51 × 10²⁰ cm^-2
N_H (intrinsic)	0 (+3.71 × 10²¹, -0) cm^-2
z of absorber	0
Photon index	1.47 (+1.55, -0.62)
Flux (0.3-10 keV) (Observed)	3.5 (+4.3, -2.1) × 10^-13 erg cm^-2 s^-1
Flux (0.3-10 keV) (Unabsorbed)	3.8 (+5.0, -1.9) × 10^-13 erg cm^-2 s^-1
Counts to flux (obs)	3.93 × 10^-11 erg cm^-2 ct^-1
Counts to flux (unabs)	4.24 × 10^-11 erg cm^-2 ct^-1
W-stat What's this?(dof)	11.34 (10)
Spectrum exposure	3.9 ks