UAL2281 United
Airbus A319 131 · N838UA · SFO → ?
· 0:32Quality 72side-onturned left 24°
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −70%). 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
- 46%
- First lockfrom target selected
- 5.5 s
- Centring, medianaz / el while locked
- 0.57° / 0.14°
- Centring, 90th pctaz / el while locked
- 1.16° / 1.01°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 17.2 s
- Time to tightestfrom first lock
- —
- Time at telefield of view ≤ 5.5°
- 7.8 s
- Jitter at teleaz / el, standard deviation
- 0.41° / 0.13°
- Swing at teleaz / el, peak to peak
- 1.27° / 0.56°
- Pan reversalsper 10 s at tele
- 1.3
- Largest pan hopin any 1 s at tele
- 12.34°
- Largest tilt hopin any 1 s at tele
- 7.27°
- Pose error, mediancommand vs camera
- 1.86°
- Largest correctionvision vs prediction
- 0.75°
- Zoom steps
- 31
Aircraft & route
- Flight
- UAL2281
- Registration
- N838UA
- Type
- Airbus A319 131
- Airline
- United
- From
- SFO
- To
- —
- Ground speed
- 292 kt
- Altitude at closest
- 6,225 ft
- Vertical rate
- +3,392 ft/min
- Category
- A3
- ICAO hex
- ab77d5
Pass geometry
- Max elevation
- 29.0°
- Elevation at start → end
- 16.7° → 29.0°
- Azimuth at start → end
- 318° NW → 252° WSW
- Closest-approach azimuth
- 254° WSW
- Minimum slant range
- 3.9 km
- Heading at closest
- 176° S
- Aspect at closest
- side-on (78°)
- Turn
- turned left 24°
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 0:32 (32.1 s)
- Lock
- 46%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-14k — loop integrates real tick time; aim lead −0.2 s
- Commit
- 33c2b35-k
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 16.0 MB · 32.0 s · offset -1.5 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
- -0.2
- 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