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SWA2981 Southwest Airlines

Boeing 737NG 7BD/W · N7747C

· 0:42Quality 86quartering

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −77%). 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
79%
First lockfrom target selected
6.4 s
Centring, medianaz / el while locked
0.12° / 0.13°
Centring, 90th pctaz / el while locked
0.33° / 0.35°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
3.6 s
Time to tightestfrom first lock
26.4 s
Time at telefield of view ≤ 5.5°
30.2 s
Jitter at teleaz / el, standard deviation
0.12° / 0.14°
Swing at teleaz / el, peak to peak
0.73° / 0.60°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
1.51°
Largest tilt hopin any 1 s at tele
0.61°
Pose error, mediancommand vs camera
0.56°
Largest correctionvision vs prediction
0.83°
Zoom steps
30

Aircraft & route

Flight
SWA2981
Registration
N7747C
Type
Boeing 737NG 7BD/W
Airline
Southwest Airlines
From
—
To
—
Ground speed
328 kt
Altitude at closest
11,225 ft
Vertical rate
+1,664 ft/min
Category
A3
ICAO hex
aa7b33

Pass geometry

Max elevation
33.1°
Elevation at start → end
33.1° → 19.7°
Azimuth at start → end
240° WSW → 209° SSW
Closest-approach azimuth
240° WSW
Minimum slant range
6.3 km
Heading at closest
188° S
Aspect at closest
quartering (52°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:42 (41.5 s)
Lock
79%

Build & tuning

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

Build
2026-10-16c — mount prior carried to the next target (silhouette reach reverted)
Commit
8649c7d
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
33.3 MB · 41.0 s · offset -1.1 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
-0.15
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