X-Ray Flux

Updates: Every 5 minutes

(last updated 19 Feb 2026 08:55 UT)

Current Flux Value Solar X-ray Flux at 19 2 2026 0848 UT: B4.0 falling (GOES 18) Previous Flux Value Solar X-ray Flux at 19 2 2026 0847 UT: B4.1 steady (GOES 18)

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