UAL2317 United
Boeing 737 MAX 9 · N27439 · SFO → SFO
· 1:19Quality 64nose/tailturned left 35°
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
- 50%
- First lockfrom target selected
- 25.4 s
- Centring, medianaz / el while locked
- 0.68° / 1.27°
- Centring, 90th pctaz / el while locked
- 3.19° / 2.57°
- Tightest field of viewhorizontal
- 5.0°
- Time to 8°from first lock
- 9.1 s
- Time to tightestfrom first lock
- 38.7 s
- Time at telefield of view ≤ 5.5°
- 2.7 s
- Jitter at teleaz / el, standard deviation
- 0.38° / 0.18°
- Swing at teleaz / el, peak to peak
- 1.13° / 0.48°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 1.34°
- Largest tilt hopin any 1 s at tele
- 1.11°
- Pose error, mediancommand vs camera
- 1.25°
- Largest correctionvision vs prediction
- 1.80°
- Zoom steps
- 46
Aircraft & route
- Flight
- UAL2317
- Registration
- N27439
- Type
- Boeing 737 MAX 9
- Airline
- United
- From
- SFO
- To
- SFO
- Ground speed
- 193 kt
- Altitude at closest
- 2,775 ft
- Vertical rate
- +2,240 ft/min
- Category
- A3
- ICAO hex
- a2b83b
Pass geometry
- Max elevation
- 87.8°
- Elevation at start → end
- 2.0° → 14.6°
- Azimuth at start → end
- 120° ESE → 276° W
- Closest-approach azimuth
- 20° NNE
- Minimum slant range
- 887 m
- Heading at closest
- 295° WNW
- Aspect at closest
- nose/tail (7°)
- Turn
- turned left 35°
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:19 (78.8 s)
- Lock
- 50%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-14c — steady overhead park, zoom travel guard v2
- Commit
- 181d1fa+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 39.5 MB · 79.0 s · offset -1.5 s
- pursuit
- velocity
- maxLeadSec
- 3
- panLatencySec
- 0.6
- tiltLatencySec
- 0.4
- rippleDeg
- 0.5
- rippleTeleDeg
- 0.25
- rateFloorDegPerDps
- 2.5
- rateFloorMaxDeg
- 12
- lockedSigmaDeg
- 0.35
- 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