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AFR84E Air France

Boeing 777 328ER · F-GZND · CDG → SFO

· 1:10Quality 89side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −62%). 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
86%
First lockfrom target selected
3.8 s
Centring, medianaz / el while locked
1.19° / 0.66°
Centring, 90th pctaz / el while locked
3.00° / 2.14°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
6.6 s
Time to tightestfrom first lock
52.8 s
Time at telefield of view ≤ 5.5°
12.4 s
Jitter at teleaz / el, standard deviation
0.40° / 0.62°
Swing at teleaz / el, peak to peak
1.62° / 2.24°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
2.77°
Largest tilt hopin any 1 s at tele
1.56°
Pose error, mediancommand vs camera
0.95°
Largest correctionvision vs prediction
1.57°
Zoom steps
44

Aircraft & route

Flight
AFR84E
Registration
F-GZND
Type
Boeing 777 328ER
Airline
Air France
From
CDG · Paris
To
SFO · San Francisco
Ground speed
263 kt
Altitude at closest
11,300 ft
Vertical rate
0 ft/min
Category
A5
ICAO hex
3965a3

Pass geometry

Max elevation
69.9°
Elevation at start → end
37.8° → 33.0°
Azimuth at start → end
336° NNW → 126° SE
Closest-approach azimuth
50° NE
Minimum slant range
3.7 km
Heading at closest
140° SE
Aspect at closest
side-on (90°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
1:10 (70.2 s)
Lock
86%

Build & tuning

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

Build
2026-10-14e — feedforward in head axes
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
35.5 MB · 71.0 s · offset -1.9 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