skylight.

N936AM

Gulfstream Aerospace GIV SP · N936AM

· 0:36Quality 69nose/tailOverhead

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −68%). 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
43%
First lockfrom target selected
5.2 s
Centring, medianaz / el while locked
0.31° / 0.62°
Centring, 90th pctaz / el while locked
2.30° / 2.64°
Tightest field of viewhorizontal
5.0°
Time to 8°from first lock
20.2 s
Time to tightestfrom first lock
21.7 s
Time at telefield of view ≤ 5.5°
1.2 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
0.53°
Largest correctionvision vs prediction
1.02°
Zoom steps
24

Aircraft & route

Flight
N936AM
Registration
N936AM
Type
Gulfstream Aerospace GIV SP
Airline
—
From
—
To
—
Ground speed
200 kt
Altitude at closest
1,375 ft
Vertical rate
—
Category
A2
ICAO hex
acfbff

Pass geometry

Max elevation
82.2°
Elevation at start → end
49.5° → 12.9°
Azimuth at start → end
105° ESE → 299° WNW
Closest-approach azimuth
23° NNE
Minimum slant range
419 m
Heading at closest
296° WNW
Aspect at closest
nose/tail (10°)
Turn
straight (2°)
Departure
Yes — climbing out after take-off
Zenith pass
Yes — camera flipped over the top
Dead-zone wrap
No
Duration
0:36 (35.5 s)
Lock
43%

Build & tuning

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

Build
2026-10-13b — vision pauses during zoom transit
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
17.5 MB · 35.0 s · offset -1.0 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