skylight.

UAL307 United

Airbus A320 232 · N461UA

· 2:05Quality 89side-onturned 42°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −78%). 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
90%
First lockfrom target selected
5.3 s
Centring, medianaz / el while locked
0.14° / 0.12°
Centring, 90th pctaz / el while locked
0.41° / 0.44°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
11.1 s
Time to tightestfrom first lock
15.2 s
Time at telefield of view ≤ 5.5°
99.6 s
Jitter at teleaz / el, standard deviation
0.24° / 0.16°
Swing at teleaz / el, peak to peak
1.51° / 1.04°
Pan reversalsper 10 s at tele
0.2
Largest pan hopin any 1 s at tele
7.22°
Largest tilt hopin any 1 s at tele
1.96°
Pose error, mediancommand vs camera
0.74°
Largest correctionvision vs prediction
2.05°
Zoom steps
12

Aircraft & route

Flight
UAL307
Registration
N461UA
Type
Airbus A320 232
Airline
United
From
—
To
—
Ground speed
297 kt
Altitude at closest
12,950 ft
Vertical rate
-960 ft/min
Category
A3
ICAO hex
a59f15

Pass geometry

Max elevation
72.3°
Elevation at start → end
18.1° → 33.4°
Azimuth at start → end
328° NNW → 134° SE
Closest-approach azimuth
49° NE
Minimum slant range
4.2 km
Heading at closest
140° SE
Aspect at closest
side-on (89°)
Turn
turned 42°
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
2:05 (124.6 s)
Lock
90%

Build & tuning

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

Build
2026-10-15o — sun keep-out by the frame; no video, no pass
Commit
cb31ea0
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
62.5 MB · 125.0 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
-0.16
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