N642ND
Cessna 172S · N642ND · SQL → SQL
· 1:35Quality 81lost lockside-onturned left 72°Dead-zone wrap
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −68%). 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
- 65%
- First lockfrom target selected
- 6.3 s
- Centring, medianaz / el while locked
- 0.70° / 0.36°
- Centring, 90th pctaz / el while locked
- 2.27° / 2.36°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 4.0 s
- Time to tightestfrom first lock
- 9.2 s
- Time at telefield of view ≤ 5.5°
- 42.6 s
- Jitter at teleaz / el, standard deviation
- 0.54° / 0.40°
- Swing at teleaz / el, peak to peak
- 2.01° / 2.05°
- Pan reversalsper 10 s at tele
- 0.9
- Largest pan hopin any 1 s at tele
- 11.87°
- Largest tilt hopin any 1 s at tele
- 6.94°
- Pose error, mediancommand vs camera
- 1.66°
- Largest correctionvision vs prediction
- 3.58°
- Zoom steps
- 50
Aircraft & route
- Flight
- N642ND
- Registration
- N642ND
- Type
- Cessna 172S
- Airline
- —
- From
- SQL · San Carlos
- To
- SQL · San Carlos
- Ground speed
- 123 kt
- Altitude at closest
- 1,950 ft
- Vertical rate
- 0 ft/min
- Category
- A1
- ICAO hex
- a86dd9
Pass geometry
- Max elevation
- 62.6°
- Elevation at start → end
- 18.2° → 10.4°
- Azimuth at start → end
- 9° N → 165° SSE
- Closest-approach azimuth
- 293° WNW
- Minimum slant range
- 689 m
- Heading at closest
- 200° SSW
- Aspect at closest
- side-on (87°)
- Turn
- turned left 72°
- Departure
- No
- Zenith pass
- No
- Dead-zone wrap
- Yes — pan pre-positioned across the stop
- Duration
- 1:35 (95.0 s)
- Lock
- 65%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-15t — vertical rate falls back to geom_rate (server)
- Commit
- 218644c
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 47.2 MB · 95.0 s · offset -0.8 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
- -0.03
- 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