skylight.

UAL194 United

Boeing 777 222ER · N206UA · SFO → MUC

· 0:59Quality 68nose/tailOverhead

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −64%). 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
42%
First lockfrom target selected
19.2 s
Centring, medianaz / el while locked
0.22° / 0.35°
Centring, 90th pctaz / el while locked
0.51° / 1.10°
Tightest field of viewhorizontal
10.8°
Time to 8°from first lock
—
Time to tightestfrom first lock
0.0 s
Time at telefield of view ≤ 5.5°
0.0 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
—
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
1.36°
Largest correctionvision vs prediction
0.77°
Zoom steps
0

Aircraft & route

Flight
UAL194
Registration
N206UA
Type
Boeing 777 222ER (B772)
Airline
United
From
SFO · San Francisco
To
MUC · Munich
Ground speed
187 kt
Altitude at closest
1,175 ft
Vertical rate
+2,688 ft/min
Category
A5
ICAO hex
a1aa10

Pass geometry

Max elevation
80.5°
Elevation at start → end
0.2° → 13.5°
Azimuth at start → end
116° ESE → 299° WNW
Closest-approach azimuth
29° NNE
Minimum slant range
396 m
Heading at closest
298° WNW
Aspect at closest
nose/tail (8°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
Yes — camera flipped over the top
Dead-zone wrap
No
Duration
0:59 (59.0 s)
Lock
42%

Build & tuning

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

Build
2026-10-13g — debanding (archive s2 + live shader)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
29.0 MB · 59.0 s · offset -1.1 s
pursuit
velocity
maxLeadSec
3
panLatencySec
0.6
tiltLatencySec
0.4
rippleDeg
0.5
rippleTeleDeg
0.25
rateFloorDegPerDps
2.5
rateFloorMaxDeg
12
lockedSigmaDeg
0.35
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