GPS interference on 21 December 2023

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As of , from flights on 21 December 2023: 478 of 12,889 map hexagons with enough traffic to measure (4%) showed high interference, meaning more than one aircraft in ten there reported poor GPS accuracy. The count in the medium band, between 3 and 10%, was 817.

Source: GPSInterference.com, https://gpsinterference.com/day/2023-12-21. Free to reuse with this credit and a link.

By region

High-interference hexagons by region, 21 December 2023. Source: GPSInterference.com.
RegionHigh-interference hexagonsShare of the region's hexagons
Black Sea10647.0%
South and Southeast Asia8717.5%
Americas631.1%
Baltic Sea543.5%
Eastern Mediterranean4030.1%
Eastern Europe347.6%
Oceania305.3%
East Asian Seas2915.0%
Africa74.1%
Middle East358.1%
Western Europe30.2%
Worldwide4783.7%

Each hexagon is counted once, in the first region listed that holds it; hexagons outside every listed region count in the total only. The region pages count every hexagon inside their own boundaries, which overlap, so they may show higher counts.

0%5%10%15%20%Jul 2023Jan 2024JulJan 2025JulJan 2026Jul 15.8%19 Jun 202511% 0%5%10%15%20%Jan 2024DecNovOct 15.8%19 Jun 202511%

Cite this day

GPSInterference.com, daily summary for 21 December 2023, https://gpsinterference.com/day/2023-12-21

This day's data: https://api.gpsinterference.com/v1/interference/2023-12-21. How to read it.