QXE2191 Horizon Air
Embraer EMB-175 LR · N646QX
· 1:09Quality 73nose/tailOverhead
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −51%). 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
- 61%
- First lockfrom target selected
- 6.6 s
- Centring, medianaz / el while locked
- 0.59° / 0.98°
- Centring, 90th pctaz / el while locked
- 5.28° / 2.83°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 3.2 s
- Time to tightestfrom first lock
- 5.5 s
- Time at telefield of view ≤ 5.5°
- 6.3 s
- Jitter at teleaz / el, standard deviation
- 0.32° / 0.32°
- Swing at teleaz / el, peak to peak
- 0.79° / 0.86°
- Pan reversalsper 10 s at tele
- 6.3
- Largest pan hopin any 1 s at tele
- 0.81°
- Largest tilt hopin any 1 s at tele
- 2.55°
- Pose error, mediancommand vs camera
- 1.33°
- Largest correctionvision vs prediction
- 0.84°
- Zoom steps
- 54
Aircraft & route
- Flight
- QXE2191
- Registration
- N646QX
- Type
- Embraer EMB-175 LR
- Airline
- Horizon Air
- From
- —
- To
- —
- Ground speed
- 329 kt
- Altitude at closest
- 9,600 ft
- Vertical rate
- +2,368 ft/min
- Category
- A3
- ICAO hex
- a87cf9
Pass geometry
- Max elevation
- 82.0°
- Elevation at start → end
- 20.0° → 34.5°
- Azimuth at start → end
- 4° N → 195° SSW
- Closest-approach azimuth
- 279° W
- Minimum slant range
- 3.0 km
- Heading at closest
- 189° S
- Aspect at closest
- nose/tail (26°)
- Turn
- straight (4°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- Yes — camera flipped over the top
- Dead-zone wrap
- No
- Duration
- 1:09 (68.8 s)
- Lock
- 61%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-13c — revert vision zoom pause
- Commit
- 181d1fa+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 34.5 MB · 69.0 s · offset -1.1 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