skylight.

UAE51N Emirates

Airbus A380 842 · A6-EUW · DXB → SFO

· 0:24Quality 68nose/tail

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −76%). 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
67%
First lockfrom target selected
6.0 s
Centring, medianaz / el while locked
0.19° / 0.23°
Centring, 90th pctaz / el while locked
8.03° / 0.41°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
11.8 s
Time to tightestfrom first lock
16.1 s
Time at telefield of view ≤ 5.5°
4.6 s
Jitter at teleaz / el, standard deviation
0.05° / 0.08°
Swing at teleaz / el, peak to peak
0.15° / 0.26°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
0.54°
Largest tilt hopin any 1 s at tele
0.35°
Pose error, mediancommand vs camera
0.57°
Largest correctionvision vs prediction
0.87°
Zoom steps
25

Aircraft & route

Flight
UAE51N
Registration
A6-EUW
Type
Airbus A380 842
Airline
Emirates
From
DXB · Dubai
To
SFO · San Francisco
Ground speed
274 kt
Altitude at closest
10,350 ft
Vertical rate
-1,856 ft/min
Category
A5
ICAO hex
896481

Pass geometry

Max elevation
17.5°
Elevation at start → end
17.5° → 12.6°
Azimuth at start → end
140° SE → 144° SE
Closest-approach azimuth
140° SE
Minimum slant range
10.5 km
Heading at closest
159° SSE
Aspect at closest
nose/tail (20°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
0:24 (23.6 s)
Lock
67%

Build & tuning

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

Build
2026-10-14g — vision expected spot at frame time, departure pre-zoom, focus from profile, damped lead learner
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
12.0 MB · 24.0 s · offset -1.6 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
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