skylight.

SWA2102 Southwest Airlines

Boeing 737NG 7H4/W · N221WN

· 0:12Quality 40shortlow zoomnose/tail

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
52%
First lockfrom target selected
5.6 s
Centring, medianaz / el while locked
0.27° / 0.82°
Centring, 90th pctaz / el while locked
0.36° / 2.21°
Tightest field of viewhorizontal
10.8°
Time to 8°from first lock
—
Time to tightestfrom first lock
0.0 s
Time at telefield of view ≤ 5.5°
0.0 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
—
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
1.57°
Largest correctionvision vs prediction
0.18°
Zoom steps
0

Aircraft & route

Flight
SWA2102
Registration
N221WN
Type
Boeing 737NG 7H4/W
Airline
Southwest Airlines
From
—
To
—
Ground speed
377 kt
Altitude at closest
11,725 ft
Vertical rate
+3,072 ft/min
Category
A3
ICAO hex
a1e6b9

Pass geometry

Max elevation
26.9°
Elevation at start → end
26.9° → 22.0°
Azimuth at start → end
165° SSE → 163° SSE
Closest-approach azimuth
165° SSE
Minimum slant range
8.0 km
Heading at closest
156° SSE
Aspect at closest
nose/tail (9°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:12 (11.8 s)
Lock
52%

Build & tuning

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

Build
2026-10-13g — debanding (archive s2 + live shader)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
5.4 MB · 11.0 s · offset -0.8 s
pursuit
velocity
maxLeadSec
3
panLatencySec
0.6
tiltLatencySec
0.4
rippleDeg
0.5
rippleTeleDeg
0.25
rateFloorDegPerDps
2.5
rateFloorMaxDeg
12
lockedSigmaDeg
0.35
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