ASA269 Alaska
Boeing 737NG 890/W · N516AS · SFO → ANC
· 0:27Quality 59side-on
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −65%). 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
- 9.9 s
- Centring, medianaz / el while locked
- 0.17° / 0.08°
- Centring, 90th pctaz / el while locked
- 0.78° / 0.42°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 3.8 s
- Time to tightestfrom first lock
- 8.3 s
- Time at telefield of view ≤ 5.5°
- 9.5 s
- Jitter at teleaz / el, standard deviation
- 0.16° / 0.02°
- Swing at teleaz / el, peak to peak
- 0.47° / 0.11°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 1.67°
- Largest tilt hopin any 1 s at tele
- 0.42°
- Pose error, mediancommand vs camera
- 0.51°
- Largest correctionvision vs prediction
- 0.48°
- Zoom steps
- 20
Aircraft & route
- Flight
- ASA269
- Registration
- N516AS
- Type
- Boeing 737NG 890/W
- Airline
- Alaska
- From
- SFO · San Francisco
- To
- ANC · Anchorage
- Ground speed
- 320 kt
- Altitude at closest
- 12,725 ft
- Vertical rate
- +2,880 ft/min
- Category
- A3
- ICAO hex
- a677ca
Pass geometry
- Max elevation
- 16.6°
- Elevation at start → end
- 16.6° → 14.9°
- Azimuth at start → end
- 240° WSW → 226° SW
- Closest-approach azimuth
- 240° WSW
- Minimum slant range
- 13.6 km
- Heading at closest
- 181° S
- Aspect at closest
- side-on (59°)
- Turn
- straight (0°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 0:27 (26.7 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
- 2026-10-14m — upstream carries fields missing from one poll
- Commit
- 5b2d779
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 13.1 MB · 26.0 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
- sigmaGrowthDps
- 0.1
- aimLeadSec
- -0.16
- 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