ASA269 Alaska
Boeing 737NG 890/W · N537AS · SFO → ANC
· 0:23Quality 66side-on
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −66%). 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
- 51%
- First lockfrom target selected
- 6.5 s
- Centring, medianaz / el while locked
- 0.46° / 0.35°
- Centring, 90th pctaz / el while locked
- 1.29° / 1.14°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 5.7 s
- Time to tightestfrom first lock
- 9.1 s
- Time at telefield of view ≤ 5.5°
- 1.5 s
- Jitter at teleaz / el, standard deviation
- —
- Swing at teleaz / el, peak to peak
- —
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 2.76°
- Largest tilt hopin any 1 s at tele
- 1.99°
- Pose error, mediancommand vs camera
- 1.51°
- Largest correctionvision vs prediction
- 0.85°
- Zoom steps
- 25
Aircraft & route
- Flight
- ASA269
- Registration
- N537AS
- Type
- Boeing 737NG 890/W
- Airline
- Alaska
- From
- SFO · San Francisco
- To
- ANC · Anchorage
- Ground speed
- 291 kt
- Altitude at closest
- 7,625 ft
- Vertical rate
- +2,624 ft/min
- Category
- A3
- ICAO hex
- a6ca7f
Pass geometry
- Max elevation
- 29.3°
- Elevation at start → end
- 17.9° → 29.3°
- Azimuth at start → end
- 321° NW → 289° WNW
- Closest-approach azimuth
- 289° WNW
- Minimum slant range
- 4.8 km
- Heading at closest
- 181° S
- Aspect at closest
- side-on (71°)
- Turn
- straight (7°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 0:23 (22.7 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
- 2026-10-13j — 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
- 11.0 MB · 22.0 s · offset -1.0 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