Original Summary

I built Perigee , a free, open-source web viewer that shows what humanity has in space right now, computed live in your browser from public data. What's in it - Earth: all ~16,600 active catalogued satellites, propagated with SGP4 from CelesTrak orbital elements (refreshed every 4 hours). You can filter by operator, country, constellation, orbit type or launch site, and search by name or NORAD number. - Moon: active lunar orbiters (LRO, Danuri, Chandrayaan-2, CAPSTONE…) from NASA/JPL Horizons ephemerides, plus 50+ landing and impact sites. - Mars: the orbiters, Phobos and Deimos, landing sites, and the latest positions of Curiosity and Perseverance from NASA's traverse feeds. - Solar system: the planets, five dwarf planets and 20+ probes (Voyagers, Juno, Parker, JUICE, Europa Clipper…), with their distance and light travel time. Click anything for details: identifiers, operator, launch date, orbit, and where its position comes from. Positions that are extrapolated beyond their data are drawn dimmed and flagged, so you can tell what is measured and what is estimated. You can speed up time (up to ×100,000), jump to any date, and share a link that reproduces exactly what you see. It works on phones, it's bilingual EN/FR, and it runs offline once visited. Try it: https://dlamarre-dev.github.io/Perigee/ Code (MIT): https://github.com/dlamarre-dev/Perigee Educational use only, not for navigation or conjunction assessment. Feedback welcome, especially if you spot a mission with the wrong status!   submitted by   /u/dlamarre [link]   [comments]

  • 情报分类：硬件与数码
  • 分类依据：内容涉及硬件、数码产品或通信卡
  • 信息来源：Reddit · SideProject
  • 发布时间：2026/9/29 04:12:19