skylight.

N322LL

Embraer Phenom 300 · N322LL · TIW → SJC

· 0:21Quality 52lost lockside-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −57%). 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
37%
First lockfrom target selected
12.9 s
Centring, medianaz / el while locked
0.27° / 0.10°
Centring, 90th pctaz / el while locked
0.50° / 0.38°
Tightest field of viewhorizontal
3.5°
Time to 8°from first lock
—
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
2.0 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
2.38°
Largest correctionvision vs prediction
2.93°
Zoom steps
34

Aircraft & route

Flight
N322LL
Registration
N322LL
Type
Embraer Phenom 300
Airline
—
From
TIW · Tacoma
To
SJC · San Jose
Ground speed
307 kt
Altitude at closest
13,150 ft
Vertical rate
-1,472 ft/min
Category
A2
ICAO hex
a376c3

Pass geometry

Max elevation
72.5°
Elevation at start → end
69.4° → 54.9°
Azimuth at start → end
17° NNE → 112° ESE
Closest-approach azimuth
50° NE
Minimum slant range
4.2 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
0:21 (21.0 s)
Lock
37%

Build & tuning

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

Build
2026-10-15s — bias fold follows a ramp; no pass below the skyline
Commit
cdd2256
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
9.0 MB · 17.6 s · offset -0.7 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
-0.21
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