ASA521 Alaska
Boeing 737MAX 9 · N972AK
· 1:24Quality 92side-onturned right 16°
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 —
Loading telemetry…
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
- 76%
- First lockfrom target selected
- 4.7 s
- Centring, medianaz / el while locked
- 0.65° / 0.22°
- Centring, 90th pctaz / el while locked
- 1.61° / 0.75°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 6.1 s
- Time to tightestfrom first lock
- 8.7 s
- Time at telefield of view ≤ 5.5°
- 28.0 s
- Jitter at teleaz / el, standard deviation
- 0.48° / 0.22°
- Swing at teleaz / el, peak to peak
- 1.87° / 1.34°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 9.12°
- Largest tilt hopin any 1 s at tele
- 1.79°
- Pose error, mediancommand vs camera
- 0.95°
- Largest correctionvision vs prediction
- 3.35°
- Zoom steps
- 64
Aircraft & route
- Flight
- ASA521
- Registration
- N972AK
- Type
- Boeing 737MAX 9
- Airline
- Alaska
- From
- —
- To
- —
- Ground speed
- 357 kt
- Altitude at closest
- 13,300 ft
- Vertical rate
- -1,152 ft/min
- Category
- A3
- ICAO hex
- ad8b1d
Pass geometry
- Max elevation
- 72.7°
- Elevation at start → end
- 36.7° → 22.6°
- Azimuth at start → end
- 332° NNW → 143° SE
- Closest-approach azimuth
- 49° NE
- Minimum slant range
- 4.3 km
- Heading at closest
- 140° SE
- Aspect at closest
- side-on (90°)
- Turn
- turned right 16°
- Departure
- No
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:24 (84.2 s)
- Lock
- 76%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-14f — camera profile, head-axes control, speed floor, park from profile, learned lead
- Commit
- 181d1fa+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 42.0 MB · 84.0 s · offset -1.0 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
- 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