skylight.

SKW832Y SkyWest

Embraer EMB-175 LR · N197SY · SFO → SNA

· 0:14Quality 40shortlost lockwrap pinnednose/tailDead-zone wrap

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
17%
First lockfrom target selected
10.6 s
Centring, medianaz / el while locked
0.31° / 0.65°
Centring, 90th pctaz / el while locked
0.31° / 0.65°
Tightest field of viewhorizontal
5.0°
Time to 8°from first lock
—
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
0.8 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
0.54°
Largest correctionvision vs prediction
0.25°
Zoom steps
20

Aircraft & route

Flight
SKW832Y
Registration
N197SY
Type
Embraer EMB-175 LR
Airline
SkyWest
From
SFO · San Francisco
To
SNA · Santa Ana
Ground speed
301 kt
Altitude at closest
8,875 ft
Vertical rate
+1,152 ft/min
Category
A3
ICAO hex
a183d3

Pass geometry

Max elevation
14.4°
Elevation at start → end
14.4° → 12.5°
Azimuth at start → end
204° SSW → 202° SSW
Closest-approach azimuth
204° SSW
Minimum slant range
11.0 km
Heading at closest
191° S
Aspect at closest
nose/tail (12°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
Yes — pan pre-positioned across the stop
Duration
0:14 (13.6 s)
Lock
17%

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
7.0 MB · 14.0 s · offset -1.7 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
0.51
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