GCXO – Tenerife Norte-Ciudad de La Laguna Airport

Tier A (measured) · 694 movements in 2026 · milestones measured from APDF

Poor coverage. 98.0% of movements in 2026 are picked up, and 0% of the position reports expected while taxiing out actually arrive. Almost nothing is received while aircraft are on the ground. They become visible only once airborne, so no surface event can be derived at this aerodrome.

period departures arrivals Departures seen (%) Arrivals seen (%) Coverage index
2026 348 346 98.0% 86.4% 0.260
2025 319 320 98.4% 60.0% 0.000
2024 327 327 31.2% 30.6% 0.000

Departures

off_s is good when negative – the track began before take-off.

Distribution of off_s. Zero is take-off. 238 movement(s) fall outside +/-30 min and are excluded from the plot (2026: 0 below / 53 above, 2025: 0 below / 102 above, 2024: 0 below / 83 above). They are included in every percentile below.

When the track starts, relative to take-off (minutes)

period n p10 p50 p90
2026 341 +0.2 +1.8 +78.8
2025 314 +1.2 +1.7 +73.1
2024 102 +27.4 +70.2 +74.0
delta 2026-2025 -1.0 +0.1 +5.7

How much of the taxi-out was observed, across all movements. The dashed line is every aerodrome pooled; a curve to the right of it is better, because more of this aerodrome’s movements were well observed.

How much of the taxi-out was received (1.00 = every expected report arrived)

period n p10 p50 p90
2026 341 0.000 0.000 0.000
2025 314 0.000 0.000 0.000
2024 102 0.000 0.000 0.000
delta 2026-2025 0.000 0.000 0.000

Arrivals

land_s is good when positive – the track ran on past landing.

Distribution of land_s. Zero is landing. 237 movement(s) fall outside +/-30 min and are excluded from the plot (2026: 49 below / 0 above, 2025: 109 below / 0 above, 2024: 79 below / 0 above). They are included in every percentile below.

When the track ends, relative to landing (minutes)

period n p10 p50 p90
2026 299 -71.8 +0.5 +3.0
2025 192 -80.6 -69.2 -1.8
2024 100 -86.4 -70.2 -24.2
delta 2026-2025 +8.8 +69.7 +4.8

How much of the taxi-in was observed, across all movements. The dashed line is every aerodrome pooled; a curve to the right of it is better, because more of this aerodrome’s movements were well observed.

How much of the taxi-in was received (1.00 = every expected report arrived)

period n p10 p50 p90
2026 293 0.000 0.564 0.991
2025 186 0.000 0.000 0.000
2024 100 0.000 0.000 0.000
delta 2026-2025 0.000 0.564 0.991

Where the coverage is

Each position report is placed on a hexagonal grid over the aerodrome, on a log colour scale: one apron cell can hold thousands of reports while a runway threshold holds tens. Empty ground is surface the receivers do not reach.

Use the legend to add the airborne layer and any example flights. Scroll to zoom.

Against the fleet

How this aerodrome compares with the 89 aerodromes with measured milestones. Typical aerodrome is the median across all of them. Rank is this aerodrome’s position among them, 0 (lowest) to 100 (highest).

measure this aerodrome typical aerodrome rank (0–100)
Coverage index 0.260 0.590 11
Departures seen (%) 98.0% 99.7% 13
Taxi-out received (median) 0.000 0.191 0
Taxi-in received (median) 0.564 1.000 12
Track start vs take-off (min, median) +1.8 -1.8 85
Track end vs landing (min, median) +0.5 +7.2 10

Higher rank is better everywhere except track start vs take-off, where a low value is the good case.

Was each flight tracked as one flight?

A poor coverage number can mean the receivers heard nothing, or that the algorithm cut the flight’s track up. This separates them.

period One flight, one track (%) Split across tracks (%) Merged with another flight (%)
2026 departures 79.3% 18.1% 0.6%
2026 arrivals 72.3% 13.6% 0.6%
2025 departures 67.4% 31.0% 0.0%
2025 arrivals 52.8% 6.9% 0.3%
2024 departures 29.1% 2.1% 0.0%
2024 arrivals 23.9% 6.7% 0.0%

The underlying counts

Everything above is derived from these. Typical taxi times are context: the same 200 seconds of reception is most of a short taxi and a fraction of a long one.

period Departures Departures seen Arrivals Arrivals seen Unusable reference rows Typical taxi-out (min) Typical taxi-in (min)
2026 348 341 346 299 0 8.1 2.8
2025 319 314 320 192 0 7.7 2.8
2024 327 102 327 100 0 7.5 2.2

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