skylight.

EJA863 NetJets

· 0:44Quality 82lost lockside-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −73%). 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
82%
First lockfrom target selected
5.2 s
Centring, medianaz / el while locked
0.18° / 0.25°
Centring, 90th pctaz / el while locked
0.65° / 1.34°
Tightest field of viewhorizontal
3.7°
Time to 8°from first lock
2.7 s
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
34.0 s
Jitter at teleaz / el, standard deviation
0.26° / 0.46°
Swing at teleaz / el, peak to peak
1.16° / 1.59°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
18.20°
Largest tilt hopin any 1 s at tele
1.14°
Pose error, mediancommand vs camera
0.50°
Largest correctionvision vs prediction
1.69°
Zoom steps
12

Aircraft & route

Flight
EJA863
Registration
—
Type
—
Airline
NetJets
From
—
To
—
Ground speed
232 kt
Altitude at closest
9,725 ft
Vertical rate
-1,536 ft/min
Category
A2
ICAO hex
abdb6b

Pass geometry

Max elevation
18.9°
Elevation at start → end
18.9° → 14.4°
Azimuth at start → end
22° NNE → 53° NE
Closest-approach azimuth
22° NNE
Minimum slant range
9.2 km
Heading at closest
111° ESE
Aspect at closest
side-on (89°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
0:44 (44.1 s)
Lock
82%

Build & tuning

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

Build
2026-10-15q — drive speed latched at the lens position; measured speed bytes only; auto-cal keeps gains
Commit
44f2d6a
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
19.8 MB · 43.3 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
-0.27
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