skylight.

JSX651 JSX Air

OAK → LAS

· 0:13Quality 40shortlost lockquartering

3D replay

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
18%
First lockfrom target selected
5.3 s
Centring, medianaz / el while locked
4.24° / 0.41°
Centring, 90th pctaz / el while locked
4.26° / 0.41°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
—
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
2.3 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
1.13°
Largest correctionvision vs prediction
0.52°
Zoom steps
17

Aircraft & route

Flight
JSX651
Registration
—
Type
—
Airline
JSX Air
From
OAK · Oakland
To
LAS · Las Vegas
Ground speed
282 kt
Altitude at closest
10,125 ft
Vertical rate
+1,600 ft/min
Category
A2
ICAO hex
ad4818

Pass geometry

Max elevation
28.6°
Elevation at start → end
28.6° → 24.8°
Azimuth at start → end
230° SW → 217° SW
Closest-approach azimuth
230° SW
Minimum slant range
6.5 km
Heading at closest
177° S
Aspect at closest
quartering (52°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:13 (12.5 s)
Lock
18%

Build & tuning

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

Build
2026-10-16g — A/B lockFirst (mount prior on)
Commit
9bdc356
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
6.5 MB · 13.0 s · offset -1.6 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
-0.11
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