X-Ray Flux

Updates: Every 5 minutes

(last updated 16 Feb 2026 12:00 UT)

Current Flux Value Solar X-ray Flux at 16 2 2026 1155 UT: B4.9 steady (GOES 18) Previous Flux Value Solar X-ray Flux at 16 2 2026 1154 UT: B4.9 rising (GOES 18)

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