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Show HN: Real-time Solar System with 526k asteroids and all tracked satellites

407 points · 112 comments · wanick

wanick · 1790710695 · focus · HN ↗
Author here. It's a browser view of the Solar System at real scale, with its current state, plus the objects around Earth from the CelesTrak catalog.
Data: CelesTrak TLEs (SGP4), asteroids and comets from JPL SBDB, spacecraft positions from JPL Horizons. Updated daily.
Rendering is WebGL2, orbit propagation runs in web workers. The asteroid set (~30 MB) loads in the background.
The time slider runs forwards and backwards; satellites appear and disappear by launch date.
1. schiffern · 1790757310 · focus · HN ↗
  >satellites appear and disappear by launch date
  This uses the modern TLE propagated backwards in time (vs using historical TLEs), correct?
  1. wanick · 1790768955 · focus · HN ↗
    Yes, current TLEs propagated backwards. Past 90 days it's marked as an estimate.

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