UAL1257 United
Boeing 737MAX 8 · N17262 · SFO → ?
· 0:20Quality 63quartering
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −31%). 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
- 58%
- First lockfrom target selected
- 5.1 s
- Centring, medianaz / el while locked
- 0.14° / 0.19°
- Centring, 90th pctaz / el while locked
- 1.60° / 1.24°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 10.5 s
- Time to tightestfrom first lock
- —
- Time at telefield of view ≤ 5.5°
- 5.4 s
- Jitter at teleaz / el, standard deviation
- 0.07° / 0.11°
- Swing at teleaz / el, peak to peak
- 0.20° / 0.32°
- Pan reversalsper 10 s at tele
- 0.0
- Largest pan hopin any 1 s at tele
- 1.17°
- Largest tilt hopin any 1 s at tele
- 0.38°
- Pose error, mediancommand vs camera
- 0.65°
- Largest correctionvision vs prediction
- 0.75°
- Zoom steps
- 30
Aircraft & route
- Flight
- UAL1257
- Registration
- N17262
- Type
- Boeing 737MAX 8
- Airline
- United
- From
- SFO
- To
- —
- Ground speed
- 299 kt
- Altitude at closest
- 10,525 ft
- Vertical rate
- +2,624 ft/min
- Category
- A3
- ICAO hex
- a123e0
Pass geometry
- Max elevation
- 26.2°
- Elevation at start → end
- 26.2° → 20.6°
- Azimuth at start → end
- 226° SW → 214° SW
- Closest-approach azimuth
- 226° SW
- Minimum slant range
- 7.3 km
- Heading at closest
- 184° S
- Aspect at closest
- quartering (42°)
- Turn
- straight (4°)
- Departure
- Yes — climbing out after take-off
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 0:20 (20.1 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
- 2026-10-15q — drive speed latched at the lens position; measured speed bytes only; auto-cal keeps gains
- Commit
- 44f2d6a
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 9.5 MB · 19.0 s · offset -1.7 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