Observed arrival · 2026-10-21

Solar Observer tracks the Sun from flare to geomagnetic storm

solarobserver.org Visit website

Editorial interest 77/100 Selection signal · not a rating of the site

A public dashboard gathers solar activity and space-weather indicators, including X-ray flux, radio bursts, solar wind, and geomagnetic conditions.

Landing page captured for the 2026-10-21 issue.

For: Space-weather watchers and solar-data readers
Worth noticing: Chart controls cover windows from two hours to 30 days; the listed sources include e-CALLISTO, GOES, NOAA, NASA, SOHO, and Kyoto.

Field notes

The interface separates solar activity, geospace measurements, and long-term indices, with links onward to a radio-burst detector, e-CALLISTO analyzer, image pages, forecasts, alerts, and an archive. Different charts expose different time ranges, including 30-day views for Kp and Dst. The page credits Sahan S. Liyanage and ACCIMT in Sri Lanka; in the supplied capture, some live values are still represented by dashes.

Observed signals

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