About
Asteroid Tracker is a live, interactive view of the
near-Earth asteroids passing by our planet. It plots every catalogued close approach
over a ±70-day window, places each object on its real Keplerian orbit from NASA/JPL
elements, and animates the flybys so you can watch them sweep past Earth.
Alongside the heliocentric map you get a top-down close-approach geometry showing the
miss distance against the Moon's orbit, estimated sizes and impact energies, JPL Sentry
impact-risk flags, and recent atmospheric fireball detections.
Data: NASA/JPL CAD,
SBDB,
Sentry &
Fireballs.
Sizes are estimated from brightness; impact energies are hypothetical — these objects
miss Earth. Treat everything as indicative, not operational guidance.
Keys: space play · N now · ←/→ step day · ↑/↓ select · C Earth-lock · scroll to zoom, drag to pan
© 2026 Mike DiCarlo · All rights reserved