SWA4312 Southwest Airlines
Boeing 737NG 7H4/W · N904WN · SJC → SEA
· 1:13Quality 92side-on
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −67%). Download
Trace
Where the aircraft sat in the frame, second by second. Click the chart to jump the video there.
—FOV —az —el —pose —
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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
- 86%
- First lockfrom target selected
- 5.8 s
- Centring, medianaz / el while locked
- 0.18° / 0.10°
- Centring, 90th pctaz / el while locked
- 0.44° / 0.44°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 4.7 s
- Time to tightestfrom first lock
- 66.7 s
- Time at telefield of view ≤ 5.5°
- 60.6 s
- Jitter at teleaz / el, standard deviation
- 0.22° / 0.16°
- Swing at teleaz / el, peak to peak
- 1.00° / 0.90°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 2.80°
- Largest tilt hopin any 1 s at tele
- 1.80°
- Pose error, mediancommand vs camera
- 0.80°
- Largest correctionvision vs prediction
- 1.27°
- Zoom steps
- 37
Aircraft & route
- Flight
- SWA4312
- Registration
- N904WN
- Type
- Boeing 737NG 7H4/W
- Airline
- Southwest Airlines
- From
- SJC · San Jose
- To
- SEA · Seattle
- Ground speed
- 287 kt
- Altitude at closest
- 8,475 ft
- Vertical rate
- +3,776 ft/min
- Category
- A3
- ICAO hex
- ac8009
Pass geometry
- Max elevation
- 33.2°
- Elevation at start → end
- 25.9° → 20.1°
- Azimuth at start → end
- 306° NW → 210° SSW
- Closest-approach azimuth
- 265° W
- Minimum slant range
- 4.6 km
- Heading at closest
- 186° S
- Aspect at closest
- side-on (79°)
- Turn
- straight (0°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:13 (73.0 s)
- Lock
- 86%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-16d — interleaved A/B (experiment mountPrior)
- Commit
- 221ec3f
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 57.2 MB · 73.0 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
- -0.1
- 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