skylight.

KLM373 KLM

· 1:36side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −62%). 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
87%
First lockfrom target selected
5.0 s
Centring, medianaz / el while locked
0.46° / 0.40°
Centring, 90th pctaz / el while locked
2.97° / 1.53°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
9.7 s
Time to tightestfrom first lock
83.1 s
Time at telefield of view ≤ 5.5°
25.7 s
Jitter at teleaz / el, standard deviation
0.32° / 0.33°
Swing at teleaz / el, peak to peak
1.40° / 1.81°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
3.57°
Largest tilt hopin any 1 s at tele
1.24°
Pose error, mediancommand vs camera
0.72°
Largest correctionvision vs prediction
1.93°
Zoom steps
42

Aircraft & route

Flight
KLM373
Registration
—
Type
—
Airline
KLM
From
—
To
—
Ground speed
276 kt
Altitude at closest
11,175 ft
Vertical rate
—
Category
A5
ICAO hex
485f82

Pass geometry

Max elevation
69.8°
Elevation at start → end
39.9° → 18.4°
Azimuth at start → end
338° NNW → 138° SE
Closest-approach azimuth
51° NE
Minimum slant range
3.7 km
Heading at closest
140° SE
Aspect at closest
side-on (89°)
Turn
straight (14°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
1:36 (96.4 s)
Lock
87%

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
48.5 MB · 97.0 s · offset -1.9 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