X-Ray Flux

Updates: Every 5 minutes

(last updated 16 Jun 2026 20:37 UT)

Current Flux Value Solar X-ray Flux at 16 6 2026 2031 UT: B4.7 falling (GOES 18) Previous Flux Value Solar X-ray Flux at 16 6 2026 2030 UT: B4.8 rising (GOES 18)

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