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ASA1369 Alaska

Boeing 737 MAX 8 · N846AK · SFO → ?

· 0:56Quality 92side-on

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −73%). 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
73%
First lockfrom target selected
13.5 s
Centring, medianaz / el while locked
0.24° / 0.13°
Centring, 90th pctaz / el while locked
1.52° / 1.67°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
8.2 s
Time to tightestfrom first lock
11.3 s
Time at telefield of view ≤ 5.5°
31.8 s
Jitter at teleaz / el, standard deviation
0.25° / 0.17°
Swing at teleaz / el, peak to peak
1.07° / 1.06°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
3.14°
Largest tilt hopin any 1 s at tele
1.88°
Pose error, mediancommand vs camera
1.20°
Largest correctionvision vs prediction
3.92°
Zoom steps
48

Aircraft & route

Flight
ASA1369
Registration
N846AK
Type
Boeing 737 MAX 8
Airline
Alaska
From
SFO
To
—
Ground speed
287 kt
Altitude at closest
7,375 ft
Vertical rate
+3,008 ft/min
Category
A3
ICAO hex
ab962d

Pass geometry

Max elevation
31.5°
Elevation at start → end
20.8° → 23.7°
Azimuth at start → end
318° NW → 223° SW
Closest-approach azimuth
264° W
Minimum slant range
4.3 km
Heading at closest
185° S
Aspect at closest
side-on (79°)
Turn
straight (6°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
No
Duration
0:56 (56.0 s)
Lock
73%

Build & tuning

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

Build
2026-10-16a — main b067f99 (review cleanup)
Commit
b067f99
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
26.1 MB · 52.2 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