skylight.

N918TA

Gulfstream Aerospace G650 ER · N918TA

· 1:18Quality 87nose/tail

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −70%). 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
51%
First lockfrom target selected
29.4 s
Centring, medianaz / el while locked
0.31° / 0.60°
Centring, 90th pctaz / el while locked
1.50° / 3.91°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
27.9 s
Time to tightestfrom first lock
46.9 s
Time at telefield of view ≤ 5.5°
18.0 s
Jitter at teleaz / el, standard deviation
0.18° / 0.23°
Swing at teleaz / el, peak to peak
0.69° / 1.29°
Pan reversalsper 10 s at tele
2.2
Largest pan hopin any 1 s at tele
1.02°
Largest tilt hopin any 1 s at tele
1.53°
Pose error, mediancommand vs camera
1.03°
Largest correctionvision vs prediction
2.23°
Zoom steps
95

Aircraft & route

Flight
N918TA
Registration
N918TA
Type
Gulfstream Aerospace G650 ER (GLF6)
Airline
—
From
—
To
—
Ground speed
227 kt
Altitude at closest
2,125 ft
Vertical rate
+3,904 ft/min
Category
A3
ICAO hex
acb60d

Pass geometry

Max elevation
84.5°
Elevation at start → end
-0.1° → 11.7°
Azimuth at start → end
117° ESE → 299° WNW
Closest-approach azimuth
41° NE
Minimum slant range
671 m
Heading at closest
298° WNW
Aspect at closest
nose/tail (6°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
1:18 (78.1 s)
Lock
51%

Build & tuning

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

Build
2026-10-15q — drive speed latched at the lens position; measured speed bytes only; auto-cal keeps gains
Commit
44f2d6a
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
38.6 MB · 77.2 s · offset -1.5 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
-0.27
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