Beautiful, genuinely useful tool
Most commenters praised the UX, orbit and ground-track animations, and the way many imagery sources are pulled together, calling it a rare case of AI-built work that is actually good.
Obvious vibe-coded tells
Some critics listed the LLM design giveaways, such as Instrument Sans, the pulsing LIVE dot, punchy copy and redundant UI, and others objected to an AI-written post breaking HN rules. dang defended re-upping the submission and asked people to keep criticism civil.
Headline oversells the imagery
Skeptics noted that the images are low-res public Sentinel-2/Landsat captures rather than the actual pictures from every satellite. They also pointed out that classified NRO satellites are missing from the public TLE catalog.