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SKW249R SkyWest

Embraer EMB-175 LL · N510SY · SFO → ?

· 1:11Quality 93side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −75%). 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
89%
First lockfrom target selected
7.0 s
Centring, medianaz / el while locked
0.14° / 0.15°
Centring, 90th pctaz / el while locked
0.62° / 0.36°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
4.7 s
Time to tightestfrom first lock
6.6 s
Time at telefield of view ≤ 5.5°
54.7 s
Jitter at teleaz / el, standard deviation
0.25° / 0.16°
Swing at teleaz / el, peak to peak
1.56° / 0.90°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
3.68°
Largest tilt hopin any 1 s at tele
1.72°
Pose error, mediancommand vs camera
0.91°
Largest correctionvision vs prediction
0.46°
Zoom steps
23

Aircraft & route

Flight
SKW249R
Registration
N510SY
Type
Embraer EMB-175 LL
Airline
SkyWest
From
SFO
To
—
Ground speed
288 kt
Altitude at closest
7,325 ft
Vertical rate
+2,432 ft/min
Category
A3
ICAO hex
a66316

Pass geometry

Max elevation
28.3°
Elevation at start → end
18.4° → 19.0°
Azimuth at start → end
327° NNW → 227° SW
Closest-approach azimuth
278° W
Minimum slant range
4.7 km
Heading at closest
197° SSW
Aspect at closest
side-on (82°)
Turn
straight (10°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
1:11 (70.7 s)
Lock
89%

Build & tuning

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

Build
2026-10-14n — vision skyline mask 31x cheaper (loop back to ~15 Hz)
Commit
af2a83e
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
35.5 MB · 71.0 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
-0.16
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