skylight.

JSX181 JSX Air

Embraer ERJ-135 ER · N268JX · OAK → BUR

· 1:16Quality 88side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −75%). 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
81%
First lockfrom target selected
12.3 s
Centring, medianaz / el while locked
0.20° / 0.13°
Centring, 90th pctaz / el while locked
0.52° / 0.45°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
3.5 s
Time to tightestfrom first lock
5.5 s
Time at telefield of view ≤ 5.5°
59.3 s
Jitter at teleaz / el, standard deviation
0.32° / 0.25°
Swing at teleaz / el, peak to peak
1.74° / 1.37°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
6.99°
Largest tilt hopin any 1 s at tele
3.56°
Pose error, mediancommand vs camera
1.19°
Largest correctionvision vs prediction
1.07°
Zoom steps
43

Aircraft & route

Flight
JSX181
Registration
N268JX
Type
Embraer ERJ-135 ER
Airline
JSX Air
From
OAK · Oakland
To
BUR · Burbank
Ground speed
351 kt
Altitude at closest
10,450 ft
Vertical rate
0 ft/min
Category
A2
ICAO hex
a29d93

Pass geometry

Max elevation
58.1°
Elevation at start → end
27.1° → 23.8°
Azimuth at start → end
339° NNW → 192° SSW
Closest-approach azimuth
266° W
Minimum slant range
3.8 km
Heading at closest
178° S
Aspect at closest
side-on (88°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
1:16 (75.6 s)
Lock
81%

Build & tuning

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

Build
2026-10-15p — selection hysteresis; auto-cal drops stale bias
Commit
b8aa462
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
35.5 MB · 72.0 s · offset -1.5 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
-0.16
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