skylight.

ANA108 All Nippon Airways

Boeing 777 381ER · JA787A · HND → SFO

· 1:53Quality 83lost lockside-onturned left 24°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −81%). 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
5.5 s
Centring, medianaz / el while locked
0.11° / 0.11°
Centring, 90th pctaz / el while locked
0.30° / 0.41°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
4.5 s
Time to tightestfrom first lock
6.5 s
Time at telefield of view ≤ 5.5°
87.3 s
Jitter at teleaz / el, standard deviation
0.13° / 0.19°
Swing at teleaz / el, peak to peak
0.80° / 1.75°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
2.22°
Largest tilt hopin any 1 s at tele
1.02°
Pose error, mediancommand vs camera
0.67°
Largest correctionvision vs prediction
1.71°
Zoom steps
24

Aircraft & route

Flight
ANA108
Registration
JA787A
Type
Boeing 777 381ER
Airline
All Nippon Airways
From
HND · Tokyo
To
SFO · San Francisco
Ground speed
287 kt
Altitude at closest
10,650 ft
Vertical rate
-2,048 ft/min
Category
A5
ICAO hex
869210

Pass geometry

Max elevation
28.5°
Elevation at start → end
18.0° → 13.8°
Azimuth at start → end
327° NNW → 72° ENE
Closest-approach azimuth
18° NNE
Minimum slant range
6.8 km
Heading at closest
113° ESE
Aspect at closest
side-on (85°)
Turn
turned left 24°
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
1:53 (113.2 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
2026-10-16f — A/B mountPrior, cand diagnostics, clip-short flag
Commit
3ea7ff5
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
57.0 MB · 114.0 s · offset -1.7 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
-0.1
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