X-Ray Flux

Updates: Every 5 minutes

(last updated 26 Sep 2026 01:46 UT)

Current Flux Value Solar X-ray Flux at 26 9 2026 0139 UT: B4.3 steady (GOES 18) Previous Flux Value Solar X-ray Flux at 26 9 2026 0138 UT: B4.3 steady (GOES 18)

X-Ray flux data are provided by the US Space Weather Prediction Center in Boulder.