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DAL8841 Delta Air Lines

Boeing 757 232 · N651DL

· 3:17Quality 86side-onturned right 24°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −71%). 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
95%
First lockfrom target selected
5.2 s
Centring, medianaz / el while locked
0.11° / 0.13°
Centring, 90th pctaz / el while locked
0.25° / 0.37°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
7.1 s
Time to tightestfrom first lock
11.8 s
Time at telefield of view ≤ 5.5°
173.4 s
Jitter at teleaz / el, standard deviation
0.14° / 0.21°
Swing at teleaz / el, peak to peak
1.03° / 2.22°
Pan reversalsper 10 s at tele
0.3
Largest pan hopin any 1 s at tele
3.56°
Largest tilt hopin any 1 s at tele
1.76°
Pose error, mediancommand vs camera
0.55°
Largest correctionvision vs prediction
1.90°
Zoom steps
28

Aircraft & route

Flight
DAL8841
Registration
N651DL
Type
Boeing 757 232
Airline
Delta Air Lines
From
—
To
—
Ground speed
245 kt
Altitude at closest
11,475 ft
Vertical rate
0 ft/min
Category
A4
ICAO hex
a890c7

Pass geometry

Max elevation
70.0°
Elevation at start → end
17.8° → 10.9°
Azimuth at start → end
327° NNW → 146° SE
Closest-approach azimuth
49° NE
Minimum slant range
3.7 km
Heading at closest
140° SE
Aspect at closest
side-on (89°)
Turn
turned right 24°
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
3:17 (197.3 s)
Lock
95%

Build & tuning

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

Build
2026-10-16i — lock-first on; shadow silhouette sky-masked
Commit
5610684
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
14.8 MB · 197.0 s · offset -1.4 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
-0.19
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