skylight.

SWA1050 Southwest Airlines

Boeing 737NG 752/W · N7844A · SFO → ?

· 0:12Quality 40shortlost lockwrap pinnedlow zoomnose/tailturned left 19°Dead-zone wrap

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
13%
First lockfrom target selected
11.0 s
Centring, medianaz / el while locked
0.10° / 0.20°
Centring, 90th pctaz / el while locked
0.39° / 0.35°
Tightest field of viewhorizontal
11.0°
Time to 8°from first lock
—
Time to tightestfrom first lock
—
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
1.17°
Largest correctionvision vs prediction
0.04°
Zoom steps
20

Aircraft & route

Flight
SWA1050
Registration
N7844A
Type
Boeing 737NG 752/W
Airline
Southwest Airlines
From
SFO
To
—
Ground speed
376 kt
Altitude at closest
12,725 ft
Vertical rate
+2,624 ft/min
Category
A3
ICAO hex
aaa247

Pass geometry

Max elevation
24.3°
Elevation at start → end
24.3° → 21.1°
Azimuth at start → end
209° SSW → 201° SSW
Closest-approach azimuth
209° SSW
Minimum slant range
9.5 km
Heading at closest
180° S
Aspect at closest
nose/tail (29°)
Turn
turned left 19°
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
Yes — pan pre-positioned across the stop
Duration
0:12 (12.3 s)
Lock
13%

Build & tuning

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

Build
2026-10-14k — loop integrates real tick time; aim lead −0.2 s
Commit
33c2b35-k
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
6.0 MB · 12.0 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
-0.2
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