skylight.

YEL76 Yellowtail

· 2:09Quality 87side-onturned 45°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −76%). 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
76%
First lockfrom target selected
31.2 s
Centring, medianaz / el while locked
0.14° / 0.11°
Centring, 90th pctaz / el while locked
0.43° / 0.30°
Tightest field of viewhorizontal
3.5°
Time to 8°from first lock
2.4 s
Time to tightestfrom first lock
97.9 s
Time at telefield of view ≤ 5.5°
73.5 s
Jitter at teleaz / el, standard deviation
0.20° / 0.17°
Swing at teleaz / el, peak to peak
1.66° / 1.12°
Pan reversalsper 10 s at tele
0.3
Largest pan hopin any 1 s at tele
5.19°
Largest tilt hopin any 1 s at tele
2.41°
Pose error, mediancommand vs camera
0.87°
Largest correctionvision vs prediction
3.05°
Zoom steps
63

Aircraft & route

Flight
YEL76
Registration
—
Type
—
Airline
Yellowtail
From
—
To
—
Ground speed
371 kt
Altitude at closest
13,300 ft
Vertical rate
-1,984 ft/min
Category
A1
ICAO hex
a2be85

Pass geometry

Max elevation
72.8°
Elevation at start → end
18.2° → 21.4°
Azimuth at start → end
330° NNW → 142° SE
Closest-approach azimuth
49° NE
Minimum slant range
4.2 km
Heading at closest
140° SE
Aspect at closest
side-on (89°)
Turn
turned 45°
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
2:09 (129.2 s)
Lock
76%

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
64.5 MB · 129.0 s · offset -1.4 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