UAL574 United
Boeing 737NG 824/W · N76532 · SFO → ?
· 0:14Quality 40soft focusshortlost locklow zoomnose/tailturned left 22°
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
- 2%
- First lockfrom target selected
- 14.3 s
- Centring, medianaz / el while locked
- 4.87° / 1.19°
- Centring, 90th pctaz / el while locked
- 4.87° / 1.19°
- Tightest field of viewhorizontal
- 12.8°
- Time to 8°from first lock
- —
- Time to tightestfrom first lock
- —
- Time at telefield of view ≤ 5.5°
- 0.0 s
- Jitter at teleaz / el, standard deviation
- —
- Swing at teleaz / el, peak to peak
- —
- Pan reversalsper 10 s at tele
- —
- Largest pan hopin any 1 s at tele
- —
- Largest tilt hopin any 1 s at tele
- —
- Pose error, mediancommand vs camera
- 1.71°
- Largest correctionvision vs prediction
- 0.08°
- Zoom steps
- 19
Aircraft & route
- Flight
- UAL574
- Registration
- N76532
- Type
- Boeing 737NG 824/W
- Airline
- United
- From
- SFO
- To
- —
- Ground speed
- 321 kt
- Altitude at closest
- 11,075 ft
- Vertical rate
- +1,152 ft/min
- Category
- A3
- ICAO hex
- aa56f7
Pass geometry
- Max elevation
- 14.1°
- Elevation at start → end
- 14.1° → 12.5°
- Azimuth at start → end
- 199° SSW → 196° SSW
- Closest-approach azimuth
- 199° SSW
- Minimum slant range
- 13.9 km
- Heading at closest
- 192° SSW
- Aspect at closest
- nose/tail (7°)
- Turn
- turned left 22°
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 0:14 (14.4 s)
- Lock
- 2%
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
- 7.5 MB · 15.0 s · offset -1.4 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
- -0.28
- 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