Overhead · the storm, the orbit and the sky, at once

Four things that used to live on four separate pages, fed by the same two live numbers: NOAA's planetary Kp-index and the ISS's live orbital elements. Drag the Kp slider and watch the aurora oval and the orbital-drag multiplier move together — they're the same physics. Turn on Aircraft and the ISS shows up on the same sky dome as every plane overhead, lit up green only when you could actually step outside and see it.

Kp
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ISS altitude
Rome (default) — used by ISS flyby and Aircraft. Set your own lat/lon or use location.

🌌 Aurora — tonight's real oval

🛰️ Orbit drag — is the storm eating the ISS's orbit?

Kp feeding this multiplier
ISS altitude (SGP4, live TLE)
× the atmospheric density the ISS would see at this altitude on a quiet day

🔭 ISS flyby — will you see it tonight?

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✈️ Sky dome — every aircraft overhead, plus the ISS if it's up there

aircraft in range · centre = straight up, edge = horizon