PFT420
Cessna Citation Excel · N420DL · SFO → ?
· 1:24Quality 85side-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 —
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
- 60%
- First lockfrom target selected
- 17.8 s
- Centring, medianaz / el while locked
- 0.26° / 0.40°
- Centring, 90th pctaz / el while locked
- 5.41° / 1.49°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 25.1 s
- Time to tightestfrom first lock
- 40.6 s
- Time at telefield of view ≤ 5.5°
- 15.9 s
- Jitter at teleaz / el, standard deviation
- 0.17° / 0.25°
- Swing at teleaz / el, peak to peak
- 0.59° / 0.92°
- Pan reversalsper 10 s at tele
- 2.5
- Largest pan hopin any 1 s at tele
- 1.53°
- Largest tilt hopin any 1 s at tele
- 1.28°
- Pose error, mediancommand vs camera
- 0.70°
- Largest correctionvision vs prediction
- 1.93°
- Zoom steps
- 48
Aircraft & route
- Flight
- PFT420
- Registration
- N420DL
- Type
- Cessna Citation Excel
- Airline
- —
- From
- SFO
- To
- —
- Ground speed
- 180 kt
- Altitude at closest
- 1,725 ft
- Vertical rate
- +3,456 ft/min
- Category
- A2
- ICAO hex
- a4fbf5
Pass geometry
- Max elevation
- 66.4°
- Elevation at start → end
- 2.0° → 13.9°
- Azimuth at start → end
- 116° ESE → 303° WNW
- Closest-approach azimuth
- 27° NNE
- Minimum slant range
- 628 m
- Heading at closest
- 303° WNW
- Aspect at closest
- side-on (84°)
- Turn
- straight (8°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:24 (84.3 s)
- Lock
- 60%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-13i — slower zoom ladder (one rung, 1.5 s)
- Commit
- 181d1fa+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 42.0 MB · 84.0 s · offset -1.3 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