skylight.

N800WC

Bombardier Challenger 604 · N800WC · SJC → STL

· 0:26Quality 66nose/tailOverhead

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −78%). 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
49%
First lockfrom target selected
9.4 s
Centring, medianaz / el while locked
0.21° / 0.22°
Centring, 90th pctaz / el while locked
1.02° / 1.02°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
5.3 s
Time to tightestfrom first lock
7.4 s
Time at telefield of view ≤ 5.5°
3.5 s
Jitter at teleaz / el, standard deviation
0.00° / 0.00°
Swing at teleaz / el, peak to peak
0.00° / 0.00°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
0.67°
Largest tilt hopin any 1 s at tele
1.34°
Pose error, mediancommand vs camera
0.70°
Largest correctionvision vs prediction
1.30°
Zoom steps
23

Aircraft & route

Flight
N800WC
Registration
N800WC
Type
Bombardier Challenger 604
Airline
—
From
SJC · San Jose
To
STL · St Louis
Ground speed
204 kt
Altitude at closest
1,200 ft
Vertical rate
—
Category
A2
ICAO hex
aae3d4

Pass geometry

Max elevation
87.5°
Elevation at start → end
71.0° → 12.4°
Azimuth at start → end
110° ESE → 297° WNW
Closest-approach azimuth
43° NE
Minimum slant range
377 m
Heading at closest
297° WNW
Aspect at closest
nose/tail (6°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
Yes — camera flipped over the top
Dead-zone wrap
No
Duration
0:26 (25.7 s)
Lock
49%

Build & tuning

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

Build
2026-10-13a — zoom ladder waits for the lens to settle before demoting
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
13.0 MB · 26.0 s · offset -1.3 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