skylight.

TWY612

Gulfstream Aerospace GVII-G600 · N415P

· 0:41Quality 83side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −81%). 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
67%
First lockfrom target selected
13.1 s
Centring, medianaz / el while locked
0.09° / 0.11°
Centring, 90th pctaz / el while locked
0.29° / 0.30°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
3.7 s
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
25.0 s
Jitter at teleaz / el, standard deviation
0.09° / 0.15°
Swing at teleaz / el, peak to peak
0.49° / 0.75°
Pan reversalsper 10 s at tele
0.4
Largest pan hopin any 1 s at tele
1.65°
Largest tilt hopin any 1 s at tele
1.08°
Pose error, mediancommand vs camera
0.86°
Largest correctionvision vs prediction
0.54°
Zoom steps
39

Aircraft & route

Flight
TWY612
Registration
N415P
Type
Gulfstream Aerospace GVII-G600
Airline
—
From
—
To
—
Ground speed
345 kt
Altitude at closest
14,025 ft
Vertical rate
+3,648 ft/min
Category
A3
ICAO hex
a4e7f8

Pass geometry

Max elevation
31.7°
Elevation at start → end
28.3° → 29.3°
Azimuth at start → end
294° WNW → 241° WSW
Closest-approach azimuth
264° W
Minimum slant range
8.0 km
Heading at closest
185° S
Aspect at closest
side-on (79°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:41 (40.6 s)
Lock
67%

Build & tuning

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

Build
2026-10-16b — silhouette fallback reach 0.8° + multipart uploads
Commit
2ed816b
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
20.5 MB · 41.0 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
-0.03
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