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QXE2134 Horizon Air

Embraer EMB-175 LR · N622QX · PSP → PAE

· 0:49Quality 4no planelost lockquartering

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −58%). 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
9%
First lockfrom target selected
31.7 s
Centring, medianaz / el while locked
1.28° / 1.27°
Centring, 90th pctaz / el while locked
1.70° / 2.12°
Tightest field of viewhorizontal
8.3°
Time to 8°from first lock
—
Time to tightestfrom first lock
0.0 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
0.46°
Largest correctionvision vs prediction
0.68°
Zoom steps
57

Aircraft & route

Flight
QXE2134
Registration
N622QX
Type
Embraer EMB-175 LR
Airline
Horizon Air
From
PSP · Palm Springs
To
PAE · Everett
Ground speed
391 kt
Altitude at closest
37,675 ft
Vertical rate
-64 ft/min
Category
A3
ICAO hex
a81f1f

Pass geometry

Max elevation
66.0°
Elevation at start → end
66.0° → 40.0°
Azimuth at start → end
277° W → 308° NW
Closest-approach azimuth
277° W
Minimum slant range
12.6 km
Heading at closest
324° NW
Aspect at closest
quartering (47°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
0:49 (48.6 s)
Lock
9%

Build & tuning

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

Build
2026-10-15s — bias fold follows a ramp; no pass below the skyline
Commit
cdd2256
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
23.8 MB · 47.9 s · offset -1.6 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
-0.21
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