Indicative · based on ADS-B integrity (NIC) data
Unknown region
Integrity drop2026-10-21 19:00Z – 20:00Z · 2 h
- Scale
- Small
- Observation sufficiency
- Medium
- Aircraft affected
- 6
Low navigation integrity (NIC) in adjacent cells. It does not say what caused it.
Opens the event's day; you choose departure and arrival.
Evidence
- Strongest moment (UTC)
- 20:00 · cell 8553656bfffffffOpen the strongest moment on the map
- Aircraft affected that hour
- 3 / 14 aircraft
- Scale basis
- 6 affected aircraft → Small event
- Observation-sufficiency basis
- 35 aircraft observed, 6 affected.
- Aircraft observed in hot hours
- 35 aircraft (17% affected)
Technical details
- Hot cell-hours
- 2(hour, cell) pairs that make up the event
- Cells
- 2
- Data source
- adsb.lol (ODbL)
- Algorithm version
- 1.10.0
Hour by hour: before, event, after
Hourly view of the event day: the event hours plus a few hours before and after. Values are the hourly share of affected aircraft across the whole published region network, not of the event's own cells; do not read them as the event's size or cause.
Before → Event → After. ○ no data: no aircraft were observed that hour; this does not mean zero interference.
| Hour (UTC) | Phase | Aircraft observed | Aircraft affected | Share |
|---|---|---|---|---|
| 16:00 | Before | 1232 | 36 | 2.9% |
| 17:00 | Before | 1123 | 30 | 2.7% |
| 18:00 | Before | 1072 | 36 | 3.4% |
| 19:00 | Event | 1013 | 33 | 3.3% |
| 20:00 | Event | 877 | 27 | 3.1% |
| 21:00 | After | 744 | 21 | 2.8% |
| 22:00 | After | 631 | 25 | 4% |
| 23:00 | After | 549 | 63 | 11.5% |
Indicative · based on ADS-B integrity (NIC) data
What we do not know about this event
- Cause: jamming, spoofing or a fault in the aircraft's avionics cannot be told apart from this data alone.
- Coverage: the data comes from a single source (adsb.lol); aircraft where there are no receivers are not seen.
- Share: the affected-aircraft count is not a share of all aircraft in the region; it covers only aircraft observed in the event's hot cell-hours.
- Reality: this is an indicator; the event has not been verified by an independent source.
Method and limits
- What is this event?
- An event is a region of low navigation integrity (NIC) seen in adjacent cells over consecutive hours. It does not say what caused it (jamming, spoofing or a fault).
- What does “aircraft affected” mean?
- The number of distinct aircraft that reported low NIC in the event's hot cell-hours. It is not a count of all aircraft in the region. Observed aircraft are only those seen in the event's hot cell-hours, not all aircraft in the region. The share should therefore not be read as “the share of aircraft in the area”.
- What does observation sufficiency say?
- Observation sufficiency comes from the number of aircraft observed and the uncertainty interval of the affected share; it shows how solid the data is. It does not say what caused the event or whether it is real. A reasonable sample. “High” needs more aircraft and a narrow interval.
Indicative · based on ADS-B integrity (NIC) data · Contains information from adsb.lol contributors (ODbL 1.0) · Manzlytics GNSS