Every satellite that passed over any place this week, and its photos
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hey HN, i built this because I'm a satellite nerd who was bored this past weekend.type in any place and it finds every satellite that passed over it in the last 7 days (SGP4 on the CelesTrak catalog, tracking 17k+ objects and runs in your browser in about half a second), then pulls the real Sentinel-2 / Landsat / NASA images from those passes.fun fact: all ~17k objects in orbit are drawn on the GPU, solving Kepler's equation every frame. also cool is that Sentinel-2 timestamps are often 5-10 min off from when the sat actually crosses your spot, so some cool math was involved in making it accurate on the site.it only shows real images taken from those exact satellites, and it never store your location.code: https://github.com/dev-Armaan/satelliteswould love feedback, contributions, or whatever else you guys can offer!
HN · launched Nov 9, 2026 · 488 upvotes (top 1%) · 0 views
Niche: geospatial and transport tracking platforms · 50 launches, 7 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Search & retrieval
- B2C
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 50 launches in geospatial and transport tracking platforms →
Could you build this?
Yes It runs SGP4 orbital propagation in the browser on public CelesTrak TLE data and queries free satellite imagery APIs (Sentinel-2, Landsat, NASA), so it mostly wraps existing open data and libraries.
Discussion
20 comments analyzed.
Concerns raised: Location input field hard to type in, Launch post appears LLM-generated, Site is broken or buggy, NRO satellites missing from public TLE catalog
Feature requests: Add Sentinel-1 SAR data, Add Umbra and Capella open data archives
Competitors
Other products that read as similar to this one : 214 launches clear the similarity bar, closest 8 shown.
Attention rank: #6 of 215 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 364 days after the earliest competitor.
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