skylight.

KOW954

Cessna Citation X · N954JS

· 1:23Quality 75nose/tail

3D replay

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 —
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
53%
First lockfrom target selected
6.8 s
Centring, medianaz / el while locked
0.94° / 0.45°
Centring, 90th pctaz / el while locked
3.46° / 4.54°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
41.8 s
Time to tightestfrom first lock
65.7 s
Time at telefield of view ≤ 5.5°
17.5 s
Jitter at teleaz / el, standard deviation
0.66° / 0.31°
Swing at teleaz / el, peak to peak
2.40° / 1.51°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
1.58°
Largest tilt hopin any 1 s at tele
2.24°
Pose error, mediancommand vs camera
0.90°
Largest correctionvision vs prediction
1.92°
Zoom steps
53

Aircraft & route

Flight
KOW954
Registration
N954JS
Type
Cessna Citation X
Airline
—
From
—
To
—
Ground speed
188 kt
Altitude at closest
2,100 ft
Vertical rate
+2,560 ft/min
Category
A2
ICAO hex
ad445c

Pass geometry

Max elevation
81.8°
Elevation at start → end
1.3° → 13.9°
Azimuth at start → end
116° ESE → 298° WNW
Closest-approach azimuth
21° NNE
Minimum slant range
687 m
Heading at closest
296° WNW
Aspect at closest
nose/tail (13°)
Turn
straight (2°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
1:23 (83.0 s)
Lock
53%

Build & tuning

The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.

Build
2026-10-14f — camera profile, head-axes control, speed floor, park from profile, learned lead
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
41.5 MB · 83.0 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
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