X-Ray Flux

Updates: Every 5 minutes

(last updated 15 Dec 2025 18:45 UT)

Current Flux Value Solar X-ray Flux at 15 12 2025 1839 UT: B5.5 steady (GOES 18) Previous Flux Value Solar X-ray Flux at 15 12 2025 1838 UT: B5.5 falling (GOES 18)

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