UAL626 United
Airbus A320 232 · N449UA · SFO → ?
· 1:21Quality 69lost lockside-onturned left 16°
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −51%). Download
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
- 40%
- First lockfrom target selected
- 33.2 s
- Centring, medianaz / el while locked
- 0.15° / 0.20°
- Centring, 90th pctaz / el while locked
- 1.76° / 0.60°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 7.8 s
- Time to tightestfrom first lock
- 37.2 s
- Time at telefield of view ≤ 5.5°
- 31.2 s
- Jitter at teleaz / el, standard deviation
- 0.22° / 0.21°
- Swing at teleaz / el, peak to peak
- 1.94° / 1.52°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 6.47°
- Largest tilt hopin any 1 s at tele
- 1.23°
- Pose error, mediancommand vs camera
- 1.41°
- Largest correctionvision vs prediction
- 1.04°
- Zoom steps
- 83
Aircraft & route
- Flight
- UAL626
- Registration
- N449UA
- Type
- Airbus A320 232
- Airline
- United
- From
- SFO
- To
- —
- Ground speed
- 288 kt
- Altitude at closest
- 6,500 ft
- Vertical rate
- +2,944 ft/min
- Category
- A3
- ICAO hex
- a56dcf
Pass geometry
- Max elevation
- 48.9°
- Elevation at start → end
- 18.9° → 19.0°
- Azimuth at start → end
- 336° NNW → 189° S
- Closest-approach azimuth
- 260° W
- Minimum slant range
- 2.6 km
- Heading at closest
- 176° S
- Aspect at closest
- side-on (83°)
- Turn
- turned left 16°
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:21 (80.7 s)
- Lock
- 40%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-15r — keep the target past the sun; paced speed re-latch
- Commit
- 05024bb
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 40.5 MB · 81.0 s · offset -1.6 s
- pursuit
- velocity
- maxLeadSec
- 3
- panLatencySec
- 0.6
- tiltLatencySec
- 0.4
- rippleDeg
- 0.5
- rippleTeleDeg
- 0.25
- maxSpeedStepFwps
- 0.45
- speedReachFrac
- 0.8
- lockedSigmaDeg
- 0.35
- sigmaGrowthDps
- 0.1
- aimLeadSec
- -0.21
- 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