skylight.

N71MB

Textron Aviation Citation CJ3+ · N71MB · SFO → ?

· 1:28Quality 78nose/tailturned left 50°Overhead

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −81%). 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
51%
First lockfrom target selected
27.6 s
Centring, medianaz / el while locked
0.44° / 0.37°
Centring, 90th pctaz / el while locked
9.24° / 4.25°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
35.1 s
Time to tightestfrom first lock
37.6 s
Time at telefield of view ≤ 5.5°
12.5 s
Jitter at teleaz / el, standard deviation
0.23° / 0.19°
Swing at teleaz / el, peak to peak
0.89° / 0.81°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
1.78°
Largest tilt hopin any 1 s at tele
1.13°
Pose error, mediancommand vs camera
0.61°
Largest correctionvision vs prediction
3.67°
Zoom steps
40

Aircraft & route

Flight
N71MB
Registration
N71MB
Type
Textron Aviation Citation CJ3+
Airline
—
From
SFO
To
—
Ground speed
218 kt
Altitude at closest
2,200 ft
Vertical rate
+2,880 ft/min
Category
A1
ICAO hex
a97ac9

Pass geometry

Max elevation
84.6°
Elevation at start → end
1.2° → 15.9°
Azimuth at start → end
115° ESE → 284° WNW
Closest-approach azimuth
208° SSW
Minimum slant range
712 m
Heading at closest
297° WNW
Aspect at closest
nose/tail (9°)
Turn
turned left 50°
Departure
Yes — climbing out after take-off
Zenith pass
Yes — camera flipped over the top
Dead-zone wrap
No
Duration
1:28 (88.3 s)
Lock
51%

Build & tuning

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

Build
2026-10-13i — slower zoom ladder (one rung, 1.5 s)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
44.5 MB · 89.0 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