Thread

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. ddahlen · 1790729814 · focus · HN ↗
  How are you sourcing the spacecraft positions from JPL? Are you just grabbing a huge list of state vectors?
  My old day job was to compute asteroid positions for NASA telescopes, if you are interested in orbit prop you may be interested in: <a href="https://github.com/dahlend/kete" rel="nofollow">https://github.com/dahlend/kete
  I made an asteroid only version of yours earlier this year, where it does full orbit propagation in workers: <a href="https://dahlend.github.io/ketev/" rel="nofollow">https://dahlend.github.io/ketev/
  1. wanick · 1790757902 · focus · HN ↗
    Yes, state vectors from the Horizons API for each spacecraft, refreshed daily. Thanks for the kete link, I'll take a look.

Unofficial Hacker News client; not affiliated with Y Combinator.