{"schemaVersion":"1.0","id":"final-approach-heathrow","dataset":"flights-24h","title":"Final approach: 24h into Heathrow","description":"Twenty-four hours of arrivals stacked into one day of approach.","methodology":"Aircraft descending within 0.35° of Heathrow, counted once an hour and bucketed by hour of day. OpenSky's free tier serves the present rather than the past, so this profile cannot be backfilled — it accumulates. Until a full day has been collected the graph is honestly partial, and each hour's figure is replaced on the next pass through it.","category":"aviation","categoryLabel":"Aviation","cadence":"live","placeholder":true,"landingPage":"https://londongraph.com/g/final-approach-heathrow","markdown":"https://londongraph.com/g/final-approach-heathrow/index.html.md","source":{"name":"OpenSky","url":"https://opensky-network.org/","licence":"OpenSky Network terms of use","licenceUrl":"https://opensky-network.org/about/terms-of-use"},"updatedAt":"2026-10-15T08:07:11.878Z","release":{"label":null,"publishedAt":null,"resourceUrl":null,"methodologyUrl":null,"sha256":null},"observations":[{"series":"","buckets":["00:00","01:00","02:00","03:00","04:00","05:00","06:00","07:00","08:00","09:00","10:00","11:00","12:00","13:00","14:00","15:00","16:00","17:00","18:00","19:00","20:00","21:00","22:00","23:00"],"values":[1,0,0,0,0,1,7,5,9,6,7,9,5,3,8,7,6,6,9,6,4,5,3,1],"unit":"aircraft on approach","metadata":[{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{}]}],"areaStatistics":null,"visualizations":[{"id":"overview","label":"Trend","description":"Twenty-four hours of arrivals stacked into one day of approach.","url":"https://londongraph.com/g/final-approach-heathrow","renderer":"primary","default":true,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null}],"availability":"observations","note":"The release is complete for the measures represented on the graph page."}