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SKW5970 SkyWest

Embraer EMB-175 LL · N87367 · SLC → SFO

· 1:12Quality 91side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −74%). 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
8.8 s
Centring, medianaz / el while locked
0.35° / 0.27°
Centring, 90th pctaz / el while locked
1.09° / 0.67°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
4.1 s
Time to tightestfrom first lock
5.9 s
Time at telefield of view ≤ 5.5°
14.7 s
Jitter at teleaz / el, standard deviation
0.33° / 0.18°
Swing at teleaz / el, peak to peak
1.35° / 0.85°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
3.50°
Largest tilt hopin any 1 s at tele
1.56°
Pose error, mediancommand vs camera
1.08°
Largest correctionvision vs prediction
2.79°
Zoom steps
37

Aircraft & route

Flight
SKW5970
Registration
N87367
Type
Embraer EMB-175 LL
Airline
SkyWest
From
SLC · Salt Lake City
To
SFO · San Francisco
Ground speed
265 kt
Altitude at closest
11,275 ft
Vertical rate
0 ft/min
Category
A3
ICAO hex
ac04c5

Pass geometry

Max elevation
70.1°
Elevation at start → end
29.9° → 40.6°
Azimuth at start → end
332° NNW → 122° ESE
Closest-approach azimuth
51° NE
Minimum slant range
3.7 km
Heading at closest
140° SE
Aspect at closest
side-on (89°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
1:12 (71.5 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
2026-10-13l — log why the zoom ladder moved
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
36.0 MB · 72.0 s · offset -1.5 s
pursuit
velocity
maxLeadSec
3
panLatencySec
0.6
tiltLatencySec
0.4
rippleDeg
0.5
rippleTeleDeg
0.25
rateFloorDegPerDps
2.5
rateFloorMaxDeg
12
lockedSigmaDeg
0.35
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