UAL743 United
Airbus A319 131 · N823UA
· 1:29Quality 88side-on
Trace
Where the aircraft sat in the frame, second by second. Click the chart to jump the video there.
—FOV —az —el —pose —
Loading telemetry…
Lock
Events
Tracking metrics
How well the camera kept the aircraft centred. Tap a metric for what it means and what good looks like.
- Lockshare of the pass
- 87%
- First lockfrom target selected
- 5.3 s
- Centring, medianaz / el while locked
- 0.20° / 0.18°
- Centring, 90th pctaz / el while locked
- 0.57° / 0.41°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 10.2 s
- Time to tightestfrom first lock
- 12.7 s
- Time at telefield of view ≤ 5.5°
- 42.4 s
- Jitter at teleaz / el, standard deviation
- 0.25° / 0.20°
- Swing at teleaz / el, peak to peak
- 1.53° / 0.80°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 2.62°
- Largest tilt hopin any 1 s at tele
- 1.15°
- Pose error, mediancommand vs camera
- 0.74°
- Largest correctionvision vs prediction
- 1.08°
- Zoom steps
- 24
Aircraft & route
- Flight
- UAL743
- Registration
- N823UA
- Type
- Airbus A319 131
- Airline
- United
- From
- —
- To
- —
- Ground speed
- 258 kt
- Altitude at closest
- 11,175 ft
- Vertical rate
- -832 ft/min
- Category
- A3
- ICAO hex
- ab3dc3
Pass geometry
- Max elevation
- 26.5°
- Elevation at start → end
- 21.3° → 18.4°
- Azimuth at start → end
- 339° NNW → 62° ENE
- Closest-approach azimuth
- 14° NNE
- Minimum slant range
- 7.6 km
- Heading at closest
- 109° ESE
- Aspect at closest
- side-on (85°)
- Turn
- straight (0°)
- Departure
- No
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:29 (89.3 s)
- Lock
- 87%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-13k — centred plane + noisy motion check no longer demotes the zoom
- Commit
- 181d1fa+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 44.6 MB · 89.0 s · offset -1.5 s
- pursuit
- velocity
- maxLeadSec
- 3
- panLatencySec
- 0.6
- tiltLatencySec
- 0.4
- rippleDeg
- 0.5
- rippleTeleDeg
- 0.25
- rateFloorDegPerDps
- 2.5
- rateFloorMaxDeg
- 12
- lockedSigmaDeg
- 0.35
- correctionSlewDps
- 2.5
- kp
- 1
- ki
- 0.6
This clip and poster are © Skylight (Cameron Paczek): free for non-commercial use with credit to skylightceiling.com, not MIT. License