skylight.

SKW5566 SkyWest

Bombardier CRJ 200ER · N933EV · SFO → ?

· 0:39Quality 82quartering

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −75%). 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
66%
First lockfrom target selected
13.0 s
Centring, medianaz / el while locked
0.10° / 0.16°
Centring, 90th pctaz / el while locked
0.21° / 0.44°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
4.8 s
Time to tightestfrom first lock
17.7 s
Time at telefield of view ≤ 5.5°
22.7 s
Jitter at teleaz / el, standard deviation
0.13° / 0.12°
Swing at teleaz / el, peak to peak
0.49° / 0.47°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
1.21°
Largest tilt hopin any 1 s at tele
0.46°
Pose error, mediancommand vs camera
0.48°
Largest correctionvision vs prediction
0.89°
Zoom steps
36

Aircraft & route

Flight
SKW5566
Registration
N933EV
Type
Bombardier CRJ 200ER
Airline
SkyWest
From
SFO
To
—
Ground speed
286 kt
Altitude at closest
6,825 ft
Vertical rate
—
Category
A2
ICAO hex
acf146

Pass geometry

Max elevation
23.8°
Elevation at start → end
23.8° → 14.6°
Azimuth at start → end
235° SW → 208° SSW
Closest-approach azimuth
235° SW
Minimum slant range
5.2 km
Heading at closest
187° S
Aspect at closest
quartering (48°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:39 (39.2 s)
Lock
66%

Build & tuning

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

Build
2026-10-15p — selection hysteresis; auto-cal drops stale bias
Commit
b8aa462
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
19.2 MB · 39.0 s · offset -1.8 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
-0.16
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