skylight.

N49HT

Dassault Falcon 2000LX S · N49HT

· 1:24Quality 83nose/tail

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −68%). 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
62%
First lockfrom target selected
19.6 s
Centring, medianaz / el while locked
0.30° / 0.67°
Centring, 90th pctaz / el while locked
2.28° / 3.24°
Tightest field of viewhorizontal
3.4°
Time to 8°from first lock
17.6 s
Time to tightestfrom first lock
52.8 s
Time at telefield of view ≤ 5.5°
31.2 s
Jitter at teleaz / el, standard deviation
0.46° / 0.44°
Swing at teleaz / el, peak to peak
2.35° / 1.45°
Pan reversalsper 10 s at tele
0.6
Largest pan hopin any 1 s at tele
1.81°
Largest tilt hopin any 1 s at tele
4.01°
Pose error, mediancommand vs camera
0.75°
Largest correctionvision vs prediction
2.54°
Zoom steps
74

Aircraft & route

Flight
N49HT
Registration
N49HT
Type
Dassault Falcon 2000LX S (F2TH)
Airline
—
From
—
To
—
Ground speed
204 kt
Altitude at closest
2,050 ft
Vertical rate
+2,496 ft/min
Category
A2
ICAO hex
a60e80

Pass geometry

Max elevation
82.3°
Elevation at start → end
0.2° → 13.3°
Azimuth at start → end
117° ESE → 299° WNW
Closest-approach azimuth
27° NNE
Minimum slant range
655 m
Heading at closest
297° WNW
Aspect at closest
nose/tail (9°)
Turn
straight (4°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
1:24 (84.1 s)
Lock
62%

Build & tuning

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

Build
2026-10-16b — silhouette fallback reach 0.8° + multipart uploads
Commit
2ed816b
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
42.0 MB · 84.0 s · offset -0.9 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
-0.03
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