UAL893 United
Boeing 787 9 · N24979 · SFO → ICN
· 0:35Quality 73side-onOverhead
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
- 55%
- First lockfrom target selected
- 7.3 s
- Centring, medianaz / el while locked
- 0.26° / 0.41°
- Centring, 90th pctaz / el while locked
- 14.45° / 3.52°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 25.0 s
- Time to tightestfrom first lock
- —
- Time at telefield of view ≤ 5.5°
- 0.9 s
- Jitter at teleaz / el, standard deviation
- —
- Swing at teleaz / el, peak to peak
- —
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- —
- Largest tilt hopin any 1 s at tele
- —
- Pose error, mediancommand vs camera
- 1.39°
- Largest correctionvision vs prediction
- 1.48°
- Zoom steps
- 25
Aircraft & route
- Flight
- UAL893
- Registration
- N24979
- Type
- Boeing 787 9
- Airline
- United
- From
- SFO · San Francisco
- To
- ICN · Seoul
- Ground speed
- 196 kt
- Altitude at closest
- 1,050 ft
- Vertical rate
- —
- Category
- A5
- ICAO hex
- a254dd
Pass geometry
- Max elevation
- 74.1°
- Elevation at start → end
- 19.1° → 12.9°
- Azimuth at start → end
- 111° ESE → 299° WNW
- Closest-approach azimuth
- 15° NNE
- Minimum slant range
- 307 m
- Heading at closest
- 298° WNW
- Aspect at closest
- side-on (77°)
- Turn
- straight (0°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- Yes — camera flipped over the top
- Dead-zone wrap
- No
- Duration
- 0:35 (34.6 s)
- Lock
- 55%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-14d — park, zoom guard v2, visionMiss log
- Commit
- 181d1fa+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 17.5 MB · 35.0 s · offset -1.3 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