skylight.

DCM2748

N286FJ

· 0:23Quality 69side-onturned right 64°

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
62%
First lockfrom target selected
5.1 s
Centring, medianaz / el while locked
0.80° / 0.67°
Centring, 90th pctaz / el while locked
1.95° / 2.32°
Tightest field of viewhorizontal
5.0°
Time to 8°from first lock
15.6 s
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
0.7 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
1.69°
Largest correctionvision vs prediction
3.46°
Zoom steps
30

Aircraft & route

Flight
DCM2748
Registration
N286FJ
Type
—
Airline
—
From
—
To
—
Ground speed
178 kt
Altitude at closest
1,475 ft
Vertical rate
—
Category
A2
ICAO hex
a2e4cb

Pass geometry

Max elevation
18.8°
Elevation at start → end
17.0° → 14.2°
Azimuth at start → end
89° E → 43° NE
Closest-approach azimuth
72° ENE
Minimum slant range
1.4 km
Heading at closest
347° NNW
Aspect at closest
side-on (85°)
Turn
turned right 64°
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:23 (23.0 s)
Lock
62%

Build & tuning

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

Build
2026-10-13g — debanding (archive s2 + live shader)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
11.5 MB · 23.0 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