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Event catalogue

Events are built by merging NIC drops in adjacent cells over time. Data is updated by a nightly job and can be delayed; the latest data time is shown below. An event does not say what caused it (jamming, spoofing or a fault); it only shows where and how many aircraft were affected.

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Indicative · based on ADS-B integrity (NIC) data

Positioning anomaly history2026-08: 970 high-level

Month-by-month counts of positioning anomalies in the archive's focus region (Europe, the Middle East, the Caucasus and the North African coast). Each record is one aircraft's unusual position jump.

Daily records (by rule level)
3402026-08-01: 9 / 4 / 152026-08-02: 14 / 3 / 92026-08-03: 15 / 5 / 42026-08-04: 38 / 4 / 152026-08-05: 12 / 13 / 102026-08-06: 17 / 5 / 72026-08-07: 34 / 9 / 212026-08-08: 10 / 4 / 52026-08-09: 23 / 2 / 142026-08-10: 46 / 6 / 212026-08-11: 16 / 8 / 72026-08-12: 260 / 7 / 732026-08-13: 27 / 7 / 82026-08-14: 37 / 5 / 112026-08-15: 43 / 6 / 162026-08-16: 27 / 2 / 132026-08-17: 19 / 4 / 122026-08-18: 19 / 2 / 82026-08-19: 108 / 2 / 262026-08-20: 7 / 5 / 102026-08-21: 45 / 7 / 92026-08-22: 6 / 2 / 102026-08-23: 12 / 7 / 122026-08-24: 30 / 2 / 152026-08-25: 17 / 7 / 62026-08-26: 12 / 5 / 92026-08-27: 13 / 4 / 72026-08-28: 20 / 7 / 152026-08-29: 8 / 5 / 202026-08-30: 18 / 2 / 92026-08-31: 8 / 5 / 608-0108-1608-31

Low Medium High

Peak day: 2026-08-12, 340 records (260 high-level).

MonthDays with dataRule: highRule: mediumRule: lowOverlapping integrity lossRule version
2026-083197015642329531.6.0

Rule-based and experimental; it does not establish physical spoofing, and a receiver or data fault can leave the same trace. Counts are computed from the archived raw positions with the rule version written in each month file; this focus region only (wider than the map's region). Low-level records are weak signals.

Data window: 2026-10-14 – 2026-10-20 (UTC, last 7 days)

Events
274
Large-scale integrity drop
42
Integrity drop
217
Positioning anomaly
57

4,539 Aircraft affected in integrity drop events (total). The same aircraft can be counted in more than one event.

Events per dayIntegrity dropPositioning anomaly

UTC day the event started; colour shows the type.

274 of 869 events

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Indicative · based on ADS-B integrity (NIC) data · Contains information from adsb.lol contributors (ODbL 1.0) · Manzlytics GNSS

The event catalog is available from Sep 1, 2026; the event list shows the last 7 days. Event data is not published for earlier days; this does not mean no events occurred.

A permanent page is created only for medium and high level events (observation sufficiency for integrity drops, rule level for positioning anomalies); low level events stay in the list.