AAL2904 American Airlines
Airbus A321 231SL · N993AN · SFO → DFW
· 0:59Quality 68lost lockwrap pinnedquarteringDead-zone wrap
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −69%). 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
- 5.6 s
- Centring, medianaz / el while locked
- 0.15° / 0.21°
- Centring, 90th pctaz / el while locked
- 3.36° / 3.65°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 4.8 s
- Time to tightestfrom first lock
- 24.7 s
- Time at telefield of view ≤ 5.5°
- 32.2 s
- Jitter at teleaz / el, standard deviation
- 0.12° / 0.15°
- Swing at teleaz / el, peak to peak
- 0.58° / 0.73°
- Pan reversalsper 10 s at tele
- 0.3
- Largest pan hopin any 1 s at tele
- 7.14°
- Largest tilt hopin any 1 s at tele
- 0.81°
- Pose error, mediancommand vs camera
- 0.41°
- Largest correctionvision vs prediction
- 4.37°
- Zoom steps
- 50
Aircraft & route
- Flight
- AAL2904
- Registration
- N993AN
- Type
- Airbus A321 231SL
- Airline
- American Airlines
- From
- SFO · San Francisco
- To
- DFW · Dallas-Fort Worth
- Ground speed
- 319 kt
- Altitude at closest
- 12,325 ft
- Vertical rate
- +1,280 ft/min
- Category
- A3
- ICAO hex
- adddd5
Pass geometry
- Max elevation
- 21.9°
- Elevation at start → end
- 21.9° → 13.2°
- Azimuth at start → end
- 200° SSW → 173° S
- Closest-approach azimuth
- 200° SSW
- Minimum slant range
- 10.1 km
- Heading at closest
- 149° SSE
- Aspect at closest
- quartering (52°)
- Turn
- straight (0°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- Yes — pan pre-positioned across the stop
- Duration
- 0:59 (59.0 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
- 2026-10-16a — main b067f99 (review cleanup)
- Commit
- b067f99
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 29.4 MB · 59.0 s · offset -1.7 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