Daily report
Thursday, 21 May 2026
On this day we detected 25 new GNSS interference incidents, 24% more than the 30-day average of 20.1. The most affected areas were Black Sea (7), Eastern Mediterranean (6) and Northern Iraq (6). The longest incident lasted 14 h near Helsinki, and up to 18 aircraft were affected at once by a single incident.
25
new incidents
▲ 24% vs 30-day avg
28
incidents active during the day
5 days
total incident time
18
most aircraft affected by one incident
Jamming1657%Spoofing725%Denial414%Possible meaconing14%
Most affected areas
7
6
6
4
3
1
Times are UTC. An incident is counted on the day it starts. Members can download this data as CSV or GeoJSON. Learn more.