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UAL2262 United

Boeing 737NG 824/W · N77536 · LAS → SFO

· 0:33Quality 72quartering

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −80%). 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
46%
First lockfrom target selected
12.5 s
Centring, medianaz / el while locked
0.10° / 0.13°
Centring, 90th pctaz / el while locked
0.29° / 0.32°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
3.3 s
Time to tightestfrom first lock
9.0 s
Time at telefield of view ≤ 5.5°
15.5 s
Jitter at teleaz / el, standard deviation
0.17° / 0.12°
Swing at teleaz / el, peak to peak
0.62° / 0.36°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
0.86°
Largest tilt hopin any 1 s at tele
0.59°
Pose error, mediancommand vs camera
0.46°
Largest correctionvision vs prediction
0.33°
Zoom steps
41

Aircraft & route

Flight
UAL2262
Registration
N77536
Type
Boeing 737NG 824/W
Airline
United
From
LAS · Las Vegas
To
SFO · San Francisco
Ground speed
280 kt
Altitude at closest
11,450 ft
Vertical rate
-128 ft/min
Category
A3
ICAO hex
aa7e7a

Pass geometry

Max elevation
21.0°
Elevation at start → end
21.0° → 14.7°
Azimuth at start → end
62° ENE → 78° ENE
Closest-approach azimuth
62° ENE
Minimum slant range
9.8 km
Heading at closest
111° ESE
Aspect at closest
quartering (49°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
0:33 (32.7 s)
Lock
46%

Build & tuning

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

Build
2026-10-15s — bias fold follows a ramp; no pass below the skyline
Commit
cdd2256
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
16.5 MB · 33.0 s · offset -1.1 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
-0.16
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