UAL673 United
Boeing 787 9 · N36962 · SFO → BOS
· 0:32Quality 87nose/tail
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −76%). 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
- 84%
- First lockfrom target selected
- 4.8 s
- Centring, medianaz / el while locked
- 0.12° / 0.15°
- Centring, 90th pctaz / el while locked
- 1.14° / 0.39°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 3.5 s
- Time to tightestfrom first lock
- 7.6 s
- Time at telefield of view ≤ 5.5°
- 20.9 s
- Jitter at teleaz / el, standard deviation
- 0.14° / 0.20°
- Swing at teleaz / el, peak to peak
- 0.62° / 0.89°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 0.98°
- Largest tilt hopin any 1 s at tele
- 1.27°
- Pose error, mediancommand vs camera
- 0.46°
- Largest correctionvision vs prediction
- 0.77°
- Zoom steps
- 25
Aircraft & route
- Flight
- UAL673
- Registration
- N36962
- Type
- Boeing 787 9
- Airline
- United
- From
- SFO · San Francisco
- To
- BOS · Boston
- Ground speed
- 273 kt
- Altitude at closest
- 11,375 ft
- Vertical rate
- —
- Category
- A5
- ICAO hex
- a43100
Pass geometry
- Max elevation
- 34.7°
- Elevation at start → end
- 20.4° → 34.7°
- Azimuth at start → end
- 328° NNW → 334° NNW
- Closest-approach azimuth
- 334° NNW
- Minimum slant range
- 6.1 km
- Heading at closest
- 140° SE
- Aspect at closest
- nose/tail (15°)
- Turn
- straight (0°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 0:32 (31.6 s)
- Lock
- 84%
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
- 16.1 MB · 32.0 s · offset -1.7 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