Next 24 hours
Your position on Earth · vs the aurora oval
Telemetry
Auto-refresh · 60 s · Reset location| Planetary Kp | —idx | — | — | |
| Solar wind vel. | —km/s | — | — | |
| IMF Bz (GSM) | —nT | — | — | |
| X-ray flux | — | — | — | |
| Proton flux ≥10 MeV | —pfu | — | — | |
| Plasma density | —p/cc | — | — |
Aurora oval — 30 min forecast
NOAA OVATIONAlerts
Fires in this browser · Pro adds email & pushSet thresholds and this dashboard pings you when one is crossed. Runs entirely in your browser — no server, nothing to install. Keep the tab open and it will keep watch.
| Trigger | Threshold | Current | State |
|---|---|---|---|
| Planetary Kp reaches | — | off | |
| IMF Bz sustained below (nT) | — | off | |
| X-ray flare class ≥ | — | off | |
| Proton flux pfu ≥ | — | off | |
| Aurora oval reaches my latitude | location required | — | off |
Recent alerts
Pricing
Free forever · Pro = alerts you don't have to be watchingCoronaut stays free for the dashboard and the in-browser alert center. Pro moves your thresholds server-side so the ping arrives whether the tab is open or not — plus mobile push, email, and history.
- Live dashboard, 60 s refresh
- 3D globe with terminator + aurora oval
- In-tab notifications
- Share & PWA install
- Email & mobile push
- Alert history
- Location-aware aurora alerts
- Everything in Free
- Email alerts, delivered in seconds
- Mobile push (PWA + Android/iOS)
- Location-aware aurora alerts
- Alert history (last 90 d)
- Per-threshold quiet hours
- No ads, ever
- Everything in Pro
- SMS alerts (US/CA)
- RTK GPS accuracy forecast
- HF propagation (MUF/LUF)
- Team seats (up to 3)
- Webhook to Slack / Zapier
Event bulletins
An email arrives only when the sky does something worth waking up for. No newsletter, no promotion, no digest.
- Planetary Kp reaches 5 or higher
- Any M-class or X-class solar flare
- IMF Bz sustained below −10 nT
- Aurora forecast enters your latitude
NOAA scale probabilities
R · Radio · S · Radiation · G · Geomagnetic| Day | R (radio) | S (radiation) | G (geomagnetic) |
|---|---|---|---|
| Loading… | |||
For informational and educational use. Not certified for aviation, power-grid, radio, or spacecraft operational decisions.
Privacy
What we collect
Coronaut runs entirely in your browser. It stores three things in your device's localStorage: your approximate latitude and longitude (if you choose to share them), your selected persona preset, and a local pageview counter used to size the audience during development. Nothing is transmitted to a server we control.
Third parties
The dashboard fetches data directly from the U.S. National Oceanic and Atmospheric Administration (NOAA SWPC). Those requests reach NOAA's servers and are governed by NOAA's policies. If you subscribe to the bulletin, your email address is sent to whichever provider is configured at deploy time (currently: none — subscriptions are stored locally). Google Fonts is used for typography and receives a font-file request from your browser.
Location
Location is only requested when you click "Use my location" or enter a latitude manually. It is used to compute a personal aurora verdict and to position the marker on the globe. It is stored on your device and can be cleared at any time via "Change" or the "reset location" link in the telemetry header.
Cookies
Coronaut sets no cookies.
Terms
Use
Coronaut is provided as-is for informational and educational use. Everything on the page derives from public NOAA data plus derived interpretations. You may screenshot and share the dashboard freely; the brand mark should not be removed from shared images.
No warranty
Space-weather data are subject to sensor gaps, model uncertainty, and occasional outages at the source. Coronaut does not guarantee accuracy, timeliness, or availability. Do not use Coronaut output as the sole basis for safety-critical decisions — including aviation, power-grid operations, satellite command, precision navigation, or evacuation.
Attribution
Space-weather measurements © NOAA SWPC (public domain). Coronaut presents them with independent analysis and formatting. NOAA does not endorse Coronaut.
Contact
Bug reports and correction requests: reply to any bulletin you receive, or open an issue on the project repository once it is public.
Colophon
Type
Instrument Serif and Fraunces (display), Space Grotesk (labels), JetBrains Mono (numerics). Served by Google Fonts.
Palette
Ink on graphite; amber for on-status, olive for quiet, warm ember and alarm red for degradation. All contrast ratios ≥ 4.5:1 against the panel colour.
Rendering
Single-file HTML, one <style> block, one <script>. The globe is drawn with Canvas 2D — no WebGL, no shader, no external map library.