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SWA3145 Southwest Airlines

Boeing 737NG 800/W · N8540V

· 0:24Quality 79nose/tail

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
78%
First lockfrom target selected
5.0 s
Centring, medianaz / el while locked
0.15° / 0.19°
Centring, 90th pctaz / el while locked
0.52° / 2.87°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
4.2 s
Time to tightestfrom first lock
6.3 s
Time at telefield of view ≤ 5.5°
12.5 s
Jitter at teleaz / el, standard deviation
0.15° / 0.18°
Swing at teleaz / el, peak to peak
0.61° / 0.95°
Pan reversalsper 10 s at tele
1.6
Largest pan hopin any 1 s at tele
0.74°
Largest tilt hopin any 1 s at tele
1.43°
Pose error, mediancommand vs camera
0.54°
Largest correctionvision vs prediction
1.66°
Zoom steps
25

Aircraft & route

Flight
SWA3145
Registration
N8540V
Type
Boeing 737NG 800/W
Airline
Southwest Airlines
From
—
To
—
Ground speed
274 kt
Altitude at closest
8,100 ft
Vertical rate
+2,688 ft/min
Category
A3
ICAO hex
abb8a0

Pass geometry

Max elevation
31.5°
Elevation at start → end
16.6° → 31.5°
Azimuth at start → end
23° NNE → 32° NNE
Closest-approach azimuth
32° NNE
Minimum slant range
4.8 km
Heading at closest
192° SSW
Aspect at closest
nose/tail (20°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:24 (23.6 s)
Lock
78%

Build & tuning

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

Build
2026-10-16i — lock-first on; shadow silhouette sky-masked
Commit
5610684
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
4.4 MB · 24.0 s · offset -1.2 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
-0.19
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