Thread

1. 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. laylower · 1790763652 · focus · HN ↗

      Importantly, how are we doing in terms of coverage? Are we seeing the sky enough and clearly enough to have a few years worth of warning before we get dinosaur-ed?

      I figured the experts here would care to express an opinion.

      1. dmbche · 1790782984 · focus · HN ↗

         <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;List_of_predicted_asteroid_impacts_on_Earth" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;List_of_predicted_asteroid_imp...

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