Noise Floor
An open, licence-clean picture of where the radio spectrum is contested, and what that does to navigation and satellite communications.
Status: method built and validated; the public map is in development.
What it measures
From aircraft's own ADS-B position-quality reports, it computes the share of aircraft in each area whose GNSS accuracy was degraded, by day, hour and minute, at two thresholds:
- Worse than 93 m: jamming-scale loss.
- Worse than 10 m (for aircraft that showed 10 m capability that day): space weather and SBAS outages.
It measures effects, not attribution.
Validation so far
- The known Baltic, Black Sea and Caucasus hotspots appear on every test day; quiet control regions stay near zero.
- The 13–17 Oct 2025 EGNOS outage was reconstructed from aircraft data alone, to within an hour at both ends.
- The 12 Nov 2025 G4 storm shows as 38% of capable aircraft losing 10 m accuracy over the northern US and Canada, against a 4% baseline, while jamming-scale loss stays flat.
- Both bursts of the 22 Sep 2026 Bay Area GPS loss were recovered at the minute level.
Read more
- Source code (MIT)
- Method card: what the numbers mean and what they can't tell you
- Validation report