skylight.

TZP26 ZIPAIR

Boeing 787 8 · JA826J · NRT → SFO

· 0:19Quality 62low zoomnose/tail

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −63%). 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
49%
First lockfrom target selected
6.8 s
Centring, medianaz / el while locked
0.27° / 0.21°
Centring, 90th pctaz / el while locked
0.97° / 0.40°
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
1.35°
Largest correctionvision vs prediction
0.67°
Zoom steps
0

Aircraft & route

Flight
TZP26
Registration
JA826J
Type
Boeing 787 8
Airline
ZIPAIR
From
NRT · Tokyo
To
SFO · San Francisco
Ground speed
309 kt
Altitude at closest
11,150 ft
Vertical rate
—
Category
A5
ICAO hex
86d646

Pass geometry

Max elevation
38.3°
Elevation at start → end
25.1° → 38.3°
Azimuth at start → end
330° NNW → 337° NNW
Closest-approach azimuth
337° NNW
Minimum slant range
5.5 km
Heading at closest
140° SE
Aspect at closest
nose/tail (17°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
0:19 (19.0 s)
Lock
49%

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
5.5 MB · 12.9 s · offset 0.1 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