skylight.

N615T

N615T

· 0:51Quality 82nose/tail

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
69%
First lockfrom target selected
4.3 s
Centring, medianaz / el while locked
0.37° / 0.54°
Centring, 90th pctaz / el while locked
1.08° / 1.61°
Tightest field of viewhorizontal
5.0°
Time to 8°from first lock
25.8 s
Time to tightestfrom first lock
29.2 s
Time at telefield of view ≤ 5.5°
11.5 s
Jitter at teleaz / el, standard deviation
0.26° / 0.66°
Swing at teleaz / el, peak to peak
1.05° / 1.79°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
1.34°
Largest tilt hopin any 1 s at tele
2.11°
Pose error, mediancommand vs camera
1.27°
Largest correctionvision vs prediction
2.73°
Zoom steps
37

Aircraft & route

Flight
N615T
Registration
N615T
Type
—
Airline
—
From
—
To
—
Ground speed
205 kt
Altitude at closest
1,975 ft
Vertical rate
—
Category
A3
ICAO hex
a802fa

Pass geometry

Max elevation
81.4°
Elevation at start → end
15.8° → 13.1°
Azimuth at start → end
115° ESE → 299° WNW
Closest-approach azimuth
28° NNE
Minimum slant range
621 m
Heading at closest
298° WNW
Aspect at closest
nose/tail (10°)
Turn
straight (0°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:51 (50.9 s)
Lock
69%

Build & tuning

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

Build
2026-10-13j — full 3.4 deg tele for slow planes (limit only above 0.5 deg/s)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
25.5 MB · 51.0 s · offset -1.2 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