UAL8143 United
Boeing 737MAX 8 · N17265 · SFO → ?
· 0:49Quality 79side-onturned left 73°Overhead
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
- 58%
- First lockfrom target selected
- 7.5 s
- Centring, medianaz / el while locked
- 0.67° / 0.72°
- Centring, 90th pctaz / el while locked
- 2.08° / 2.93°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 4.1 s
- Time to tightestfrom first lock
- 8.9 s
- Time at telefield of view ≤ 5.5°
- 8.4 s
- Jitter at teleaz / el, standard deviation
- 0.23° / 0.55°
- Swing at teleaz / el, peak to peak
- 0.84° / 1.69°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 1.65°
- Largest tilt hopin any 1 s at tele
- 4.57°
- Pose error, mediancommand vs camera
- 1.55°
- Largest correctionvision vs prediction
- 3.74°
- Zoom steps
- 38
Aircraft & route
- Flight
- UAL8143
- Registration
- N17265
- Type
- Boeing 737MAX 8
- Airline
- United
- From
- SFO
- To
- —
- Ground speed
- 275 kt
- Altitude at closest
- 8,350 ft
- Vertical rate
- +3,008 ft/min
- Category
- A3
- ICAO hex
- a123e3
Pass geometry
- Max elevation
- 65.2°
- Elevation at start → end
- 19.5° → 60.6°
- Azimuth at start → end
- 339° NNW → 188° S
- Closest-approach azimuth
- 222° SW
- Minimum slant range
- 2.8 km
- Heading at closest
- 138° SE
- Aspect at closest
- side-on (84°)
- Turn
- turned left 73°
- Departure
- Yes — climbing out after take-off
- Zenith pass
- Yes — camera flipped over the top
- Dead-zone wrap
- No
- Duration
- 0:49 (49.2 s)
- Lock
- 58%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-14f — camera profile, head-axes control, speed floor, park from profile, learned lead
- Commit
- 181d1fa+wip
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 24.5 MB · 49.0 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
- 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