UAL1490 United
Airbus A320 232 · N482UA · SFO → BOI
· 2:11Quality 80lost lockside-onturned left 35°Dead-zone wrap
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
- 76%
- First lockfrom target selected
- 7.7 s
- Centring, medianaz / el while locked
- 0.25° / 0.14°
- Centring, 90th pctaz / el while locked
- 1.61° / 0.48°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 3.5 s
- Time to tightestfrom first lock
- 93.5 s
- Time at telefield of view ≤ 5.5°
- 84.3 s
- Jitter at teleaz / el, standard deviation
- 0.45° / 0.23°
- Swing at teleaz / el, peak to peak
- 2.85° / 1.45°
- Pan reversalsper 10 s at tele
- 1.4
- Largest pan hopin any 1 s at tele
- 15.07°
- Largest tilt hopin any 1 s at tele
- 4.04°
- Pose error, mediancommand vs camera
- 0.61°
- Largest correctionvision vs prediction
- 1.34°
- Zoom steps
- 59
Aircraft & route
- Flight
- UAL1490
- Registration
- N482UA
- Type
- Airbus A320 232
- Airline
- United
- From
- SFO · San Francisco
- To
- BOI · Boise
- Ground speed
- 284 kt
- Altitude at closest
- 8,175 ft
- Vertical rate
- +3,648 ft/min
- Category
- A3
- ICAO hex
- a5f1ca
Pass geometry
- Max elevation
- 46.8°
- Elevation at start → end
- 19.0° → 12.6°
- Azimuth at start → end
- 344° NNW → 198° SSW
- Closest-approach azimuth
- 270° W
- Minimum slant range
- 3.4 km
- Heading at closest
- 187° S
- Aspect at closest
- side-on (83°)
- Turn
- turned left 35°
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- Yes — pan pre-positioned across the stop
- Duration
- 2:11 (131.1 s)
- Lock
- 76%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-14n — vision skyline mask 31x cheaper (loop back to ~15 Hz)
- Commit
- af2a83e
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 65.5 MB · 131.0 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
- -0.16
- 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