skylight.

PXT903

Cessna Citation Mustang · N903JP

· 0:49Quality 82side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −81%). 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
72%
First lockfrom target selected
14.4 s
Centring, medianaz / el while locked
0.10° / 0.12°
Centring, 90th pctaz / el while locked
0.25° / 0.32°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
1.7 s
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
34.0 s
Jitter at teleaz / el, standard deviation
0.13° / 0.17°
Swing at teleaz / el, peak to peak
0.71° / 0.89°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
1.48°
Largest tilt hopin any 1 s at tele
1.24°
Pose error, mediancommand vs camera
0.70°
Largest correctionvision vs prediction
0.68°
Zoom steps
39

Aircraft & route

Flight
PXT903
Registration
N903JP
Type
Cessna Citation Mustang
Airline
—
From
—
To
—
Ground speed
236 kt
Altitude at closest
12,350 ft
Vertical rate
+3,072 ft/min
Category
A1
ICAO hex
ac7b27

Pass geometry

Max elevation
29.5°
Elevation at start → end
23.0° → 29.1°
Azimuth at start → end
294° WNW → 241° WSW
Closest-approach azimuth
249° WSW
Minimum slant range
7.4 km
Heading at closest
172° S
Aspect at closest
side-on (77°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:49 (49.0 s)
Lock
72%

Build & tuning

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

Build
2026-10-16g — A/B lockFirst (mount prior on)
Commit
9bdc356
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
24.5 MB · 49.0 s · offset -1.4 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
-0.11
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