UAL1597 United
Boeing 737NG 824/W · N77520 · SFO → ?
· 1:15Quality 92side-onturned 18°
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
- 78%
- First lockfrom target selected
- 5.5 s
- Centring, medianaz / el while locked
- 0.43° / 0.23°
- Centring, 90th pctaz / el while locked
- 1.44° / 0.89°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 6.5 s
- Time to tightestfrom first lock
- 15.9 s
- Time at telefield of view ≤ 5.5°
- 18.1 s
- Jitter at teleaz / el, standard deviation
- 0.76° / 0.30°
- Swing at teleaz / el, peak to peak
- 2.38° / 1.23°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 4.29°
- Largest tilt hopin any 1 s at tele
- 2.60°
- Pose error, mediancommand vs camera
- 1.16°
- Largest correctionvision vs prediction
- 1.17°
- Zoom steps
- 42
Aircraft & route
- Flight
- UAL1597
- Registration
- N77520
- Type
- Boeing 737NG 824/W
- Airline
- United
- From
- SFO
- To
- —
- Ground speed
- 303 kt
- Altitude at closest
- 9,250 ft
- Vertical rate
- +2,752 ft/min
- Category
- A3
- ICAO hex
- aa7e51
Pass geometry
- Max elevation
- 34.6°
- Elevation at start → end
- 18.5° → 23.7°
- Azimuth at start → end
- 326° NW → 217° SW
- Closest-approach azimuth
- 264° W
- Minimum slant range
- 5.0 km
- Heading at closest
- 182° S
- Aspect at closest
- side-on (82°)
- Turn
- turned 18°
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 1:15 (74.6 s)
- Lock
- 78%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-14e — feedforward in head axes
- Commit
- 181d1fa+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 37.5 MB · 75.0 s · offset -1.6 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