skylight.

SKW5435 SkyWest

Bombardier CRJ 200LR · N947SW · SFO → RDM

· 0:17Quality 58lost lockside-on

3D replay

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
35%
First lockfrom target selected
11.2 s
Centring, medianaz / el while locked
1.39° / 0.59°
Centring, 90th pctaz / el while locked
2.62° / 1.69°
Tightest field of viewhorizontal
8.3°
Time to 8°from first lock
—
Time to tightestfrom first lock
5.0 s
Time at telefield of view ≤ 5.5°
0.0 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
—
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
2.12°
Largest correctionvision vs prediction
2.36°
Zoom steps
15

Aircraft & route

Flight
SKW5435
Registration
N947SW
Type
Bombardier CRJ 200LR
Airline
SkyWest
From
SFO · San Francisco
To
RDM · Redmond
Ground speed
282 kt
Altitude at closest
7,425 ft
Vertical rate
—
Category
A2
ICAO hex
ad28ce

Pass geometry

Max elevation
54.5°
Elevation at start → end
51.9° → 44.9°
Azimuth at start → end
297° WNW → 226° SW
Closest-approach azimuth
270° W
Minimum slant range
2.8 km
Heading at closest
183° 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
0:17 (17.0 s)
Lock
35%

Build & tuning

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

Build
2026-10-14i — zoom sigma grows after lock loss (0.1°/s)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
8.0 MB · 16.0 s · offset -0.8 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
0.59
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