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SWA3145 Southwest Airlines

Boeing 737NG 800/W · N8520Q

· 1:09Quality 96side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −68%). 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
90%
First lockfrom target selected
4.0 s
Centring, medianaz / el while locked
0.17° / 0.13°
Centring, 90th pctaz / el while locked
0.66° / 0.40°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
6.1 s
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
37.1 s
Jitter at teleaz / el, standard deviation
0.19° / 0.15°
Swing at teleaz / el, peak to peak
1.01° / 0.68°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
4.74°
Largest tilt hopin any 1 s at tele
4.30°
Pose error, mediancommand vs camera
1.18°
Largest correctionvision vs prediction
0.91°
Zoom steps
28

Aircraft & route

Flight
SWA3145
Registration
N8520Q
Type
Boeing 737NG 800/W
Airline
Southwest Airlines
From
—
To
—
Ground speed
310 kt
Altitude at closest
9,550 ft
Vertical rate
+2,624 ft/min
Category
A3
ICAO hex
abb12d

Pass geometry

Max elevation
72.6°
Elevation at start → end
25.3° → 30.8°
Azimuth at start → end
5° N → 203° SSW
Closest-approach azimuth
282° WNW
Minimum slant range
3.1 km
Heading at closest
194° SSW
Aspect at closest
side-on (88°)
Turn
straight (5°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
1:09 (69.0 s)
Lock
90%

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
31.7 MB · 65.7 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
-0.16
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