Aircraft, earthquakes, satellites and weather radar already cover any region. Military sites, population density, traffic cameras and roadwork are region-specific reference data — some layers show N/A where that region's dataset isn't built yet. Aircraft threat/fusion scoring stays anchored to Montréal–Trudeau (YUL) regardless of region.

Score is computed client-side from public ADS-B fields (speed, altitude, registry match). It is not a military sensor output.

Position, altitude, speed and heading are observed (ADS-B). † derived from reported velocity, not a radar return. ‡ estimated from aircraft type, not measured. § a registry/callsign check, not a military IFF interrogation.

Aircraft: ADS-B (adsb.lol). Earthquakes: USGS, real events, past 24h. Satellites: CelesTrak TLEs, positions computed client-side (SGP4). Traffic cameras: Québec 511 (transports.gouv.qc.ca) in Montréal — click a marker to open the official live camera, click ⌖ to zoom to them (magenta, clustered downtown); NYC DOT (webcams.nyctmc.org) in New York — snapshot image embeds directly in the popup, no click-through. Weather radar: RainViewer, public composite, refreshes ~every 10 min — ▶ plays the last ~2h of past frames as a loop, or drag the slider to scrub to any single frame. Roadwork/closures: Québec 511 MTMD (violet). Live cams: hand-picked public YouTube live streams (lime), embedded directly and playable in the popup. Military sites: publicly documented locations only (OpenStreetMap military=* tag, indigo) — not intelligence, nothing here is non-public. Population density: Statistics Canada 2021 Census of Population, official published borough/city figures (teal, circle size scales with density) — reference data, not live-updating. Nothing here is tracked by any sensor of ours.

All positions are simulated unit reports and vehicle telemetry, each carrying its own timestamp and confidence.