Show HN: Every satellite that passed over any place this week, and its photos
hey HN, i built this because i wanted to know what had actually photographed my street.<p>type in any place and it finds every satellite that passed over it in the last 7 days (SGP4 on the CelesTrak catalog, runs in your browser in about half a second), then pulls the real Sentinel-2 / Landsat / NASA images from those passes.<p>some fun bits: - the pass search can't skip a pass. checked it against a brute force on poles, the antimeridian and tiny swaths: 0 missed - all ~17k objects in orbit are drawn on the GPU, solving Kepler's equation every frame - Sentinel-2 timestamps are often 5-10 min off from when the sat actually crosses your spot, which was a fun one to figure out<p>it only says "watched" if a real image exists, and it doesn't store your location.<p>code: <a href="https://github.com/dev-Armaan/satellites" rel="nofollow">https://github.com/dev-Armaan/satellites</a><p>would love feedback, especially on what data sources to add
Wettbewerber & Alternativen
Show HN: Stream live open data in two commands
A service and open source tool to get open data streams in two commands. No sign up needed for subscribing.<p>Streams t…
Show HN: HN Atlas – Discover tools to better engage with Hacker News
HackerTube and HackerBooks remind me of the awesome HN products I use daily:<p>- hckr news: a collection of top stories…
Show HN: TinyAIArena watch AI agents battle it out
Did you ever click on an “AI Arena” expecting glorious battle and instead get a boring benchmark? If so, this project i…
Show HN: Weatheristic.com to answer questions other weather sites don't
I built this for myself. I often have questions I want quick answers to such as "how cold did it get last night?", "I j…
Show HN: MTA.rip: a train visualizer that shows congestion
It bugged me recently that the New York City subway countdown clocks show an estimated time that is often inaccurate. S…