Data and licence

The map offers daily data from 16 February 2023. Older days carry a summary only (cell level at resolution 3, an hourly timeline and the daily analysis).

Recent days are more detailed: finer cell resolutions (4–5), an hour range, Route check (which needs the finer data) and, for the newest few days, cell detail (the list of affected aircraft).

The event catalogue exists from 1 September 2026 and lists the last 7 days. Data is processed in daily batches; the latest usable time is shown in the “data window” label on each page.

Aircraft position messages: the adsb.lol community network — Open Database License (ODbL) 1.0.

Base map: OpenFreeMap, OpenMapTiles schema; data © OpenStreetMap contributors (ODbL 1.0) and Natural Earth (public domain).

Cell grid: Uber H3 (open-source library under the Apache 2.0 licence).

Country and sea names for cells: Natural Earth (public domain), Türkiye point-of-view edition.

FIR names for cells: EUROCONTROL Network Manager, FirUir_NM dataset (MIT licence) — an official, institutional source; dated 2015, so boundaries may differ slightly from the current ones.

The cell counts and levels we serve on the map and in the data files form a database derived from adsb.lol data and are licensed under the Open Database License (ODbL) 1.0. You may use, adapt and share them, including commercially, provided you attribute and share alike under the same licence.

Suggested attribution: “Manzlytics GNSS (manzlytics-web.pages.dev), from data by adsb.lol contributors, ODbL 1.0”.

The first line of the site's CSV exports is a # comment line carrying the ODbL attribution (read it in pandas with comment='#').

The general framework of the method and its limitations are on the Methodology page; the detailed calculation rules are not disclosed.