skylight.

N837SP

Cessna 172S · N837SP

· 0:41Quality 67low zoomnose/tail

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −58%). 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
0.16° / 0.19°
Centring, 90th pctaz / el while locked
0.46° / 0.44°
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
0.31°
Largest correctionvision vs prediction
0.69°
Zoom steps
0

Aircraft & route

Flight
N837SP
Registration
N837SP
Type
Cessna 172S
Airline
—
From
—
To
—
Ground speed
100 kt
Altitude at closest
3,425 ft
Vertical rate
—
Category
A1
ICAO hex
ab73f9

Pass geometry

Max elevation
21.8°
Elevation at start → end
12.4° → 21.8°
Azimuth at start → end
177° S → 185° S
Closest-approach azimuth
185° S
Minimum slant range
2.9 km
Heading at closest
350° N
Aspect at closest
nose/tail (15°)
Turn
straight (7°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
0:41 (40.7 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
2026-10-13g — debanding (archive s2 + live shader)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
20.6 MB · 41.0 s · offset -1.6 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