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SKW5502 SkyWest

Bombardier CRJ 200ER · N933EV · Departing SFO

· 0:32Quality 81side-onturned left 28°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −73%). 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
76%
First lockfrom target selected
7.1 s
Centring, medianaz / el while locked
0.43° / 0.37°
Centring, 90th pctaz / el while locked
2.12° / 2.79°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
13.3 s
Time to tightestfrom first lock
15.8 s
Time at telefield of view ≤ 5.5°
10.8 s
Jitter at teleaz / el, standard deviation
0.37° / 0.34°
Swing at teleaz / el, peak to peak
1.26° / 1.35°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
3.58°
Largest tilt hopin any 1 s at tele
2.29°
Pose error, mediancommand vs camera
3.45°
Largest correctionvision vs prediction
0.68°
Zoom steps
36

Aircraft & route

Flight
SKW5502
Registration
N933EV
Type
Bombardier CRJ 200ER
Airline
SkyWest
From
SFO · San Francisco
To
—
Ground speed
219 kt
Altitude at closest
1,725 ft
Vertical rate
—
Category
A2
ICAO hex
acf146

Pass geometry

Max elevation
79.6°
Elevation at start → end
21.3° → 14.3°
Azimuth at start → end
106° ESE → 277° W
Closest-approach azimuth
6° N
Minimum slant range
530 m
Heading at closest
287° WNW
Aspect at closest
side-on (79°)
Turn
turned left 28°
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:32 (32.3 s)
Lock
76%

Build & tuning

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

Build
2026-10-14n — vision skyline mask 31x cheaper (loop back to ~15 Hz)
Commit
af2a83e
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
15.9 MB · 32.0 s · offset -0.9 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