About: Solar Flare Watch
Solar Flare Watch republishes NOAA Space Weather Prediction Center (SWPC) data on solar X-ray flares, sunspot regions and the solar cycle once a day.
It is an independent site, not an official space weather service. For alerts and warnings, use NOAA SWPC directly.
How this site works
Once a day an automated job downloads the latest public data from the sources listed below, checks it and rebuilds these static pages. Nothing is invented or estimated by us: every number comes from a cited source.
Data sources
- NOAA Space Weather Prediction Center — GOES X-ray flares, solar regions, solar-cycle indices — U.S. Government data, public domain
- NOAA SWPC — Solar cycle progression (observed SWPC sunspot number, F10.7) — public domain
Languages
The interface is available in 14 languages and was translated by hand. Where free text from a source is translated, it is done by offline machine translation and labelled as such.
Independence
Independent site, not affiliated with the data providers named here. For information only. Figures are reproduced from the cited sources, may be delayed or contain errors, and are not advice of any kind. Always check the original source.
Using the data
Please follow each source's own terms when reusing the data and credit the original publisher.
Affiliate links
Some Japanese pages include Rakuten Affiliate and (when enabled) Amazon Associates search links. They are separate from the price data on this site and do not show store prices. See the privacy policy for details.
As an Amazon Associate I earn from qualifying purchases.