PCJ20
N820MJ
· 1:06Quality 92side-on
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −72%). 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
- 75%
- First lockfrom target selected
- 14.3 s
- Centring, medianaz / el while locked
- 0.28° / 0.47°
- Centring, 90th pctaz / el while locked
- 2.68° / 3.07°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 19.6 s
- Time to tightestfrom first lock
- 33.4 s
- Time at telefield of view ≤ 5.5°
- 31.4 s
- Jitter at teleaz / el, standard deviation
- 0.36° / 0.26°
- Swing at teleaz / el, peak to peak
- 1.71° / 1.28°
- Pan reversalsper 10 s at tele
- 1.6
- Largest pan hopin any 1 s at tele
- 2.20°
- Largest tilt hopin any 1 s at tele
- 1.79°
- Pose error, mediancommand vs camera
- 0.81°
- Largest correctionvision vs prediction
- 1.70°
- Zoom steps
- 28
Aircraft & route
- Flight
- PCJ20
- Registration
- N820MJ
- Type
- —
- Airline
- —
- From
- —
- To
- —
- Ground speed
- 197 kt
- Altitude at closest
- 1,075 ft
- Vertical rate
- +2,624 ft/min
- Category
- A1
- ICAO hex
- ab31f7
Pass geometry
- Max elevation
- 73.4°
- Elevation at start → end
- 0.7° → 12.0°
- Azimuth at start → end
- 116° ESE → 297° WNW
- Closest-approach azimuth
- 29° NNE
- Minimum slant range
- 378 m
- Heading at closest
- 298° WNW
- Aspect at closest
- side-on (89°)
- Turn
- straight (2°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:06 (65.6 s)
- Lock
- 75%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-16g — A/B lockFirst (mount prior on)
- Commit
- 9bdc356
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 32.5 MB · 65.0 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
- -0.11
- 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