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UAL1334 United

Boeing 737NG 924ER/W · N39416

· 1:31Quality 91side-onturned right 16°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −70%). 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
95%
First lockfrom target selected
5.0 s
Centring, medianaz / el while locked
0.10° / 0.16°
Centring, 90th pctaz / el while locked
0.42° / 0.57°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
6.9 s
Time to tightestfrom first lock
74.2 s
Time at telefield of view ≤ 5.5°
71.1 s
Jitter at teleaz / el, standard deviation
0.19° / 0.25°
Swing at teleaz / el, peak to peak
1.78° / 1.91°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
7.04°
Largest tilt hopin any 1 s at tele
2.19°
Pose error, mediancommand vs camera
0.94°
Largest correctionvision vs prediction
0.81°
Zoom steps
37

Aircraft & route

Flight
UAL1334
Registration
N39416
Type
Boeing 737NG 924ER/W
Airline
United
From
—
To
—
Ground speed
251 kt
Altitude at closest
11,500 ft
Vertical rate
0 ft/min
Category
A3
ICAO hex
a4943f

Pass geometry

Max elevation
70.6°
Elevation at start → end
49.6° → 20.8°
Azimuth at start → end
344° NNW → 136° SE
Closest-approach azimuth
50° NE
Minimum slant range
3.7 km
Heading at closest
140° SE
Aspect at closest
side-on (90°)
Turn
turned right 16°
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
1:31 (90.5 s)
Lock
95%

Build & tuning

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

Build
2026-10-16h — lock-first association on (A/B −40% tele gaps)
Commit
dfc3684
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
45.5 MB · 91.0 s · offset -1.3 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
-0.06
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