skylight.

DAL2074 Delta Air Lines

Boeing 737-9GPER · N951DX

· 2:02Quality 73low zoomside-onturned right 21°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −59%). 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
88%
First lockfrom target selected
5.5 s
Centring, medianaz / el while locked
0.28° / 0.40°
Centring, 90th pctaz / el while locked
3.46° / 1.19°
Tightest field of viewhorizontal
10.8°
Time to 8°from first lock
—
Time to tightestfrom first lock
0.0 s
Time at telefield of view ≤ 5.5°
0.0 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
—
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
0.66°
Largest correctionvision vs prediction
1.93°
Zoom steps
0

Aircraft & route

Flight
DAL2074
Registration
N951DX
Type
Boeing 737-9GPER
Airline
Delta Air Lines
From
—
To
—
Ground speed
287 kt
Altitude at closest
11,150 ft
Vertical rate
-192 ft/min
Category
A3
ICAO hex
ad38bf

Pass geometry

Max elevation
69.6°
Elevation at start → end
21.3° → 17.4°
Azimuth at start → end
328° NNW → 140° SE
Closest-approach azimuth
50° NE
Minimum slant range
3.6 km
Heading at closest
140° SE
Aspect at closest
side-on (90°)
Turn
turned right 21°
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
2:02 (122.3 s)
Lock
88%

Build & tuning

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

Build
2026-10-13g — debanding (archive s2 + live shader)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
61.4 MB · 123.0 s · offset -1.7 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