get real-time satellite position and visual/radio passes via the n2yo api
domain: n2yo.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Register a free N2YO account and generate an API key from the profile page.
Call GET https://api.n2yo.com/rest/v1/satellite/positions/{id}/{observer_lat}/{observer_lng}/{observer_alt}/{seconds}/&apiKey={key} for near-term footprint positions (one row per second).
Use the visualpasses endpoint (.../visualpasses/{id}/{lat}/{lng}/{alt}/{days}/{min_visibility}/) or radiopasses endpoint (.../radiopasses/{id}/{lat}/{lng}/{alt}/{days}/{min_elevation}/) for predicted passes over a NORAD catalog id.
Use the 'above' endpoint to list all objects within a search radius above an observer's location, filtered by category id.
Parse the JSON 'info' and 'positions'/'passes' arrays; azimuth/elevation are relative to the given observer coordinates.
Known gotchas
Free tier keys are rate-limited (transactions per hour, varies by endpoint category); watch for quota/429-style errors.
All endpoints require a NORAD catalog id, not a satellite name, so resolve names to ids first.
Positions/passes are computed from N2YO's own cached TLEs, which can lag the latest Celestrak/Space-Track elements by hours.
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