JBU8577 JetBlue
Airbus A321 231SL · N990JL · SFO → ?
· 1:52Quality 88nose/tail
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −74%). 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
- 57%
- First lockfrom target selected
- 18.9 s
- Centring, medianaz / el while locked
- 0.61° / 1.09°
- Centring, 90th pctaz / el while locked
- 3.38° / 9.88°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 45.8 s
- Time to tightestfrom first lock
- 66.3 s
- Time at telefield of view ≤ 5.5°
- 19.6 s
- Jitter at teleaz / el, standard deviation
- 0.33° / 0.53°
- Swing at teleaz / el, peak to peak
- 1.29° / 1.60°
- Pan reversalsper 10 s at tele
- 2.0
- Largest pan hopin any 1 s at tele
- 1.60°
- Largest tilt hopin any 1 s at tele
- 1.85°
- Pose error, mediancommand vs camera
- 0.62°
- Largest correctionvision vs prediction
- 4.36°
- Zoom steps
- 77
Aircraft & route
- Flight
- JBU8577
- Registration
- N990JL
- Type
- Airbus A321 231SL (A321)
- Airline
- JetBlue
- From
- SFO
- To
- —
- Ground speed
- 178 kt
- Altitude at closest
- 2,425 ft
- Vertical rate
- +2,240 ft/min
- Category
- A3
- ICAO hex
- add376
Pass geometry
- Max elevation
- 81.0°
- Elevation at start → end
- 0.7° → 13.9°
- Azimuth at start → end
- 116° ESE → 298° WNW
- Closest-approach azimuth
- 18° NNE
- Minimum slant range
- 776 m
- Heading at closest
- 296° WNW
- Aspect at closest
- nose/tail (15°)
- Turn
- straight (2°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:52 (111.8 s)
- Lock
- 57%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-12i — focus jumps only to trusted tele points; rate-steered setpoint; bias learned only when still
- Commit
- 68739f5+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 54.9 MB · 111.0 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