UAL1649 United
Boeing 737 MAX 9 · N27419 · SFO → CMH
· 1:23Quality 89side-onturned left 18°
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −68%). Download
Trace
Where the aircraft sat in the frame, second by second. Click the chart to jump the video there.
—FOV —az —el —pose —
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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
- 90%
- First lockfrom target selected
- 5.1 s
- Centring, medianaz / el while locked
- 0.16° / 0.12°
- Centring, 90th pctaz / el while locked
- 0.90° / 0.35°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 4.4 s
- Time to tightestfrom first lock
- 67.4 s
- Time at telefield of view ≤ 5.5°
- 51.4 s
- Jitter at teleaz / el, standard deviation
- 0.35° / 0.18°
- Swing at teleaz / el, peak to peak
- 3.02° / 1.50°
- Pan reversalsper 10 s at tele
- 0.4
- Largest pan hopin any 1 s at tele
- 4.75°
- Largest tilt hopin any 1 s at tele
- 4.31°
- Pose error, mediancommand vs camera
- 1.09°
- Largest correctionvision vs prediction
- 1.07°
- Zoom steps
- 37
Aircraft & route
- Flight
- UAL1649
- Registration
- N27419
- Type
- Boeing 737 MAX 9
- Airline
- United
- From
- SFO · San Francisco
- To
- CMH · Columbus
- Ground speed
- 267 kt
- Altitude at closest
- 4,900 ft
- Vertical rate
- +1,472 ft/min
- Category
- A3
- ICAO hex
- a2b7f5
Pass geometry
- Max elevation
- 42.7°
- Elevation at start → end
- 22.7° → 15.6°
- Azimuth at start → end
- 343° NNW → 190° S
- Closest-approach azimuth
- 280° W
- Minimum slant range
- 2.2 km
- Heading at closest
- 193° SSW
- Aspect at closest
- side-on (87°)
- Turn
- turned left 18°
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:23 (82.6 s)
- Lock
- 90%
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
- 41.0 MB · 82.0 s · offset -1.1 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