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SKW5452 SkyWest

Embraer EMB-175 LL · N84378 · RDD → SFO

· 2:09Quality 92side-onturned left 20°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −84%). 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
91%
First lockfrom target selected
6.6 s
Centring, medianaz / el while locked
0.12° / 0.10°
Centring, 90th pctaz / el while locked
0.28° / 0.25°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
2.0 s
Time to tightestfrom first lock
92.9 s
Time at telefield of view ≤ 5.5°
112.9 s
Jitter at teleaz / el, standard deviation
0.14° / 0.15°
Swing at teleaz / el, peak to peak
1.20° / 1.57°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
1.78°
Largest tilt hopin any 1 s at tele
0.84°
Pose error, mediancommand vs camera
0.61°
Largest correctionvision vs prediction
0.79°
Zoom steps
32

Aircraft & route

Flight
SKW5452
Registration
N84378
Type
Embraer EMB-175 LL
Airline
SkyWest
From
RDD · Redding
To
SFO · San Francisco
Ground speed
242 kt
Altitude at closest
11,475 ft
Vertical rate
-64 ft/min
Category
A3
ICAO hex
ab8e6c

Pass geometry

Max elevation
38.5°
Elevation at start → end
28.3° → 13.8°
Azimuth at start → end
332° NNW → 86° E
Closest-approach azimuth
18° NNE
Minimum slant range
5.6 km
Heading at closest
108° ESE
Aspect at closest
side-on (90°)
Turn
turned left 20°
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
2:09 (128.6 s)
Lock
91%

Build & tuning

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

Build
2026-10-15r — keep the target past the sun; paced speed re-latch
Commit
05024bb
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
64.0 MB · 129.0 s · offset -1.2 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