X-Ray Flux

Updates: Every 5 minutes

(last updated 09 Sep 2026 15:18 UT)

Current Flux Value Solar X-ray Flux at 9 9 2026 1513 UT: B4.2 falling (GOES 18) Previous Flux Value Solar X-ray Flux at 9 9 2026 1512 UT: B4.3 falling (GOES 18)

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