Every satellite that passed over any place this week, and its photos
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!
FL score
out of 100
Verdict
medium confidence
Competition
No competitor data yet
Trend
No signal yet
A browser tool that shows all satellites passing over a location in the past week with real satellite images.
The pain
The gap
Build angle
Strengths
- Unique combination of satellite tracking and real satellite imagery
- Fast, browser-based implementation with no location data stored
- Open source code encourages community involvement
- Technically impressive use of GPU and orbital calculations
Risks
- Limited market size and unclear monetization path
- Niche appeal mostly to satellite hobbyists or researchers
- No clear customer willingness to pay
- Potential data latency or accuracy issues with satellite images
Fly Labs Method
Is the pain real, is there a gap, is it the right time, can one person build it.
- Problem clarity
- 50
- Solution gap
- 70
- Willingness to pay
- 40
- Buildability
- 90
The idea addresses a niche curiosity with a clear technical solution but lacks a strong, widespread pain point and clear monetization potential.
Value Equation
Dream outcome and how likely it feels, against the time and effort it costs.
The value to users is interesting but limited to enthusiasts, with unclear urgency or scale to drive significant growth or revenue.
One-Person Business
Curiosity pull, identity fit, and a path from free value to paid for a solo creator.
The concept is technically impressive and unique but does not clearly solve a pressing problem or create a large market opportunity.
Viral Frameworks
Hook strength, shareability, and how cheaply it can be tested.
The idea is novel and technically feasible but lacks a clear customer segment willing to pay or a scalable business model.
Builder Lens
Evidence the problem exists, timing, defensibility, and a model that fits on a napkin.
The project is a cool technical demo with limited user demand and no obvious path to a scalable startup or product-market fit.
Five lenses, one composite. How scoring works
The angle
No market research recorded for this idea yet.
Excessive CAPTCHA challenges degrading GitHub login UX for enterprise users
GitHub's anti-bot protection forces users, especially those with organizational emails, to solve 10 blurry puzzles multiple times, creating an extremely painful and frustrating user experience.
Dev
GTA modders tediously manually edit assembly files for modpacks
Creating .oiv modpacks for GTA is tedious and error-prone due to buggy project manager software, forcing manual editing of assembly files.
Dev
BreezePDF – Free, in-browser PDF editor
BreezePDF lets you edit, sign, merge, compress, redact, OCR, fill forms, extract tables, and use 30+ more PDF tools — all in the browser, no sign-up. Files never leave your computer.I built it because when people search Google for common PDF tasks, many of the tools they find upload documents to a server. I wanted an option that keeps files local instead.I posted an earlier version on HN last spring: https://news.ycombinator.com/item?id=43880962At the time it only supported a small set of features. Over the last 10 months I rebuilt large parts of it and expanded it to nearly 40 tools, including several ideas that came from comments in that earlier thread.There is also now a desktop app for macOS, Windows, and Linux, plus a CLI/SDK for developers.
Dev
Questions about this idea?
FlyBot reads the scoring and gives you a second opinion on “Every satellite that passed over any place this week, and its photos”.