Data sources & licenses
IonoFlux combines open data from these providers. Thank you to the agencies and volunteer networks that make it available.
NOAA Space Weather Prediction Center
License: Public domain (U.S. Government work)
Datasets: F10.7 solar flux · Kp index & 3-day forecast · GOES X-ray flux · RTSW solar wind · Alerts, watches & warnings · NOAA R/S/G scales · Daily solar data (SESC sunspot number)
NOAA SWPC GloTEC (Global Total Electron Content)
License: Public domain (U.S. Government work)
Datasets: Global TEC, NmF2 and hmF2 maps (10-minute cadence)
GFZ Helmholtz Centre for Geosciences — Kp/Ap service
License: CC BY 4.0
Datasets: Kp (nowcast/definitive) · Daily Ap
SILSO, Royal Observatory of Belgium
License: CC BY-NC 4.0
Datasets: Estimated International Sunspot Number (EISN)
Global Ionospheric Radio Observatory (GIRO) via KC2G aggregate feed
License: GIRO data policy (acknowledgement required)
Datasets: Ionosonde foF2, MUF(3000)F2, M(3000)F2, hmF2
PSK Reporter (via the public MQTT feed at mqtt.pskreporter.info)
License: Free public feed — attribution to PSK Reporter
Datasets: Real-time FT8/FT4/JS8/WSPR/CW reception reports
WSPRnet spots via WSPR.live
License: Free for research/projects with freely accessible results; no commercial use
Datasets: WSPR reception reports with transmitter power
OpenStreetMap Nominatim
License: ODbL 1.0 — © OpenStreetMap contributors
Datasets: Place name geocoding
Map tiles: OpenFreeMap — © OpenMapTiles, data © OpenStreetMap contributors.
Predictions use a simplified ITU-R P.533 method driven by the GloTEC ionosphere model; see the API docs for details and known limitations.
Collection status
| Collector | Last success | State |
|---|---|---|
| geonames.cities | 41 h ago | Fresh |
| gfz.kp_ap | 3 h ago | Fresh |
| kc2g.ionosondes | 29 min ago | Fresh |
| pskreporter.mqtt | 15 min ago | Fresh |
| silso.eisn | 6 h ago | Fresh |
| swpc.alerts | 19 min ago | Fresh |
| swpc.dsd | 3 h ago | Fresh |
| swpc.f107 | 74 min ago | Fresh |
| swpc.glotec | 24 min ago | Fresh |
| swpc.kp | 29 min ago | Fresh |
| swpc.scales | 29 min ago | Fresh |
| swpc.solar_wind | 24 min ago | Fresh |
| swpc.xray | 19 min ago | Fresh |
| wsprlive.spots | 24 min ago | Fresh |