skylight.

TWY50

Dassault Falcon 7X · N50NL · SFO → ?

· 1:12Quality 91side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −71%). 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
69%
First lockfrom target selected
16.5 s
Centring, medianaz / el while locked
0.20° / 0.36°
Centring, 90th pctaz / el while locked
2.20° / 1.65°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
4.3 s
Time to tightestfrom first lock
44.3 s
Time at telefield of view ≤ 5.5°
27.6 s
Jitter at teleaz / el, standard deviation
0.24° / 0.21°
Swing at teleaz / el, peak to peak
2.86° / 1.15°
Pan reversalsper 10 s at tele
1.1
Largest pan hopin any 1 s at tele
1.63°
Largest tilt hopin any 1 s at tele
1.53°
Pose error, mediancommand vs camera
0.91°
Largest correctionvision vs prediction
1.11°
Zoom steps
47

Aircraft & route

Flight
TWY50
Registration
N50NL
Type
Dassault Falcon 7X
Airline
—
From
SFO
To
—
Ground speed
185 kt
Altitude at closest
1,525 ft
Vertical rate
+2,368 ft/min
Category
A2
ICAO hex
a638ce

Pass geometry

Max elevation
74.0°
Elevation at start → end
1.0° → 11.8°
Azimuth at start → end
116° ESE → 298° WNW
Closest-approach azimuth
23° NNE
Minimum slant range
505 m
Heading at closest
296° WNW
Aspect at closest
side-on (86°)
Turn
straight (6°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
1:12 (71.6 s)
Lock
69%

Build & tuning

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

Build
2026-10-15t — vertical rate falls back to geom_rate (server)
Commit
218644c
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
34.4 MB · 71.0 s · offset -1.0 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
-0.09
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