I've been working on Perigee, a real-time 3D viewer of every active object in orbit and beyond. 4 views: - Earth: every active catalogued satellite (around 16,700), propagated with SGP4 from CelesTrak elements refreshed every few hours. Filter by operator, country, constellation or orbit. - Moon: active lunar orbiters, plus 50+ landing and impact sites. - Mars: the orbiters, Phobos and Deimos, landing sites, and the latest positions of Curiosity and Perseverance. - Solar system: the planets, dwarf planets, 28 moons and 20+ probes (Voyagers, New Horizons, Juno, Parker, Europa Clipper, JUICE, Psyche, Lucy…), with their distance and light travel time. Click anything for its details. Follow it to get close: the ISS, Hubble, MRO, Juno and about 30 other spacecraft have NASA 3D models. You can speed up time up to ×100,000 and jump to any date. How it works: - Every position is computed in your browser: SGP4 for Earth satellites, Hermite interpolation of JPL Horizons vectors for probes, and astronomy-engine for the planets. - A GitHub Actions pipeline mirrors public data from CelesTrak or Horizons. - When a position is extrapolated beyond its data, or based on stale elements, it's drawn differently and flagged in the panel. - Artists impressions and effects (Earth clouds, gas motion on the giants) are labelled when used. No ads, no account, no cookies. The code is MIT-licensed and built using Opus 5.5: https://github.com/dlamarre-dev/... I'd love feedback, especially corrections on mission statuses, here or using the report button on the site. I'm aware of a bunch of sites and apps displaying similar data especially for Earth's orbit and a few to track space probes, but they tend to focus on satellites or the solar system, usually not both. And as a game dev, I wanted to build a tool that felt smooth and intuitive to use. Art direction and UI layout is inspired by the Halo franchise.

Perigee

Real-time web viewer of artificial objects in space

Real-time web viewer of artificial objects in space