skylight.

SKW5566 SkyWest

Bombardier CRJ 200LR · N947SW · SFO → ?

· 1:20Quality 83lost lockside-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −79%). 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
87%
First lockfrom target selected
4.9 s
Centring, medianaz / el while locked
0.14° / 0.13°
Centring, 90th pctaz / el while locked
1.03° / 0.40°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
17.7 s
Time to tightestfrom first lock
44.8 s
Time at telefield of view ≤ 5.5°
53.2 s
Jitter at teleaz / el, standard deviation
0.15° / 0.15°
Swing at teleaz / el, peak to peak
0.86° / 0.79°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
3.10°
Largest tilt hopin any 1 s at tele
0.75°
Pose error, mediancommand vs camera
0.53°
Largest correctionvision vs prediction
2.33°
Zoom steps
41

Aircraft & route

Flight
SKW5566
Registration
N947SW
Type
Bombardier CRJ 200LR
Airline
SkyWest
From
SFO
To
—
Ground speed
279 kt
Altitude at closest
6,225 ft
Vertical rate
+3,072 ft/min
Category
A2
ICAO hex
ad28ce

Pass geometry

Max elevation
43.3°
Elevation at start → end
40.0° → 15.3°
Azimuth at start → end
283° WNW → 183° S
Closest-approach azimuth
258° WSW
Minimum slant range
2.8 km
Heading at closest
172° S
Aspect at closest
side-on (87°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
1:20 (79.6 s)
Lock
87%

Build & tuning

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

Build
2026-10-16f — A/B mountPrior, cand diagnostics, clip-short flag
Commit
3ea7ff5
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
40.0 MB · 80.0 s · offset -1.4 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
-0.1
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