skylight.

SWA335 Southwest Airlines

Boeing 737NG 7H4/W · N967WN · SFO → ?

· 0:41Quality 93side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −65%). 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
80%
First lockfrom target selected
7.4 s
Centring, medianaz / el while locked
0.16° / 0.16°
Centring, 90th pctaz / el while locked
0.44° / 0.63°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
3.2 s
Time to tightestfrom first lock
5.3 s
Time at telefield of view ≤ 5.5°
25.9 s
Jitter at teleaz / el, standard deviation
0.21° / 0.17°
Swing at teleaz / el, peak to peak
1.18° / 0.92°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
3.44°
Largest tilt hopin any 1 s at tele
2.25°
Pose error, mediancommand vs camera
1.34°
Largest correctionvision vs prediction
0.94°
Zoom steps
25

Aircraft & route

Flight
SWA335
Registration
N967WN
Type
Boeing 737NG 7H4/W
Airline
Southwest Airlines
From
SFO
To
—
Ground speed
292 kt
Altitude at closest
7,400 ft
Vertical rate
+2,880 ft/min
Category
A3
ICAO hex
ad7828

Pass geometry

Max elevation
36.8°
Elevation at start → end
17.7° → 35.4°
Azimuth at start → end
323° NW → 241° WSW
Closest-approach azimuth
263° W
Minimum slant range
3.8 km
Heading at closest
177° S
Aspect at closest
side-on (86°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:41 (40.6 s)
Lock
80%

Build & tuning

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

Build
2026-10-15r — keep the target past the sun; paced speed re-latch
Commit
05024bb
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
20.5 MB · 41.0 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
-0.21
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