LIVE
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Solar X-Ray Monitor
LIVE
GOES-19 • 0.1–0.8 nm
Live X-ray flux from the GOES-19 satellite — the same feed NOAA uses to detect solar flares in real time. When the line crosses a threshold, a flare has erupted. M-class and above cause radio blackouts and can trigger geomagnetic storms 1–3 days later.
A
B
C minor
M moderate
X extreme