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UAL2352 United

Boeing 737NG 824/W · N76265 · SFO → ?

· 0:23Quality 75side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −66%). 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
69%
First lockfrom target selected
4.5 s
Centring, medianaz / el while locked
1.01° / 1.09°
Centring, 90th pctaz / el while locked
1.86° / 2.17°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
12.9 s
Time to tightestfrom first lock
16.2 s
Time at telefield of view ≤ 5.5°
3.5 s
Jitter at teleaz / el, standard deviation
0.38° / 0.33°
Swing at teleaz / el, peak to peak
1.17° / 1.08°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
4.45°
Largest tilt hopin any 1 s at tele
3.87°
Pose error, mediancommand vs camera
1.36°
Largest correctionvision vs prediction
2.14°
Zoom steps
21

Aircraft & route

Flight
UAL2352
Registration
N76265
Type
Boeing 737NG 824/W
Airline
United
From
SFO
To
—
Ground speed
295 kt
Altitude at closest
8,225 ft
Vertical rate
+4,032 ft/min
Category
A3
ICAO hex
aa4c3e

Pass geometry

Max elevation
42.2°
Elevation at start → end
25.4° → 42.2°
Azimuth at start → end
322° NW → 269° W
Closest-approach azimuth
269° W
Minimum slant range
3.8 km
Heading at closest
183° S
Aspect at closest
side-on (86°)
Turn
straight (4°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:23 (22.8 s)
Lock
69%

Build & tuning

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

Build
2026-10-14i — zoom sigma grows after lock loss (0.1°/s)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
11.5 MB · 23.0 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
0.59
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