VIR19Z Virgin Atlantic
Airbus A350 1041 · G-VPOP · LHR → SFO
· 2:07Quality 96side-onturned left 27°
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −78%). 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
- 89%
- First lockfrom target selected
- 10.7 s
- Centring, medianaz / el while locked
- 0.11° / 0.09°
- Centring, 90th pctaz / el while locked
- 0.31° / 0.24°
- Tightest field of viewhorizontal
- 3.4°
- Time to 8°from first lock
- 5.1 s
- Time to tightestfrom first lock
- 115.9 s
- Time at telefield of view ≤ 5.5°
- 92.7 s
- Jitter at teleaz / el, standard deviation
- 0.15° / 0.14°
- Swing at teleaz / el, peak to peak
- 1.12° / 1.01°
- Pan reversalsper 10 s at tele
- 0.2
- Largest pan hopin any 1 s at tele
- 2.43°
- Largest tilt hopin any 1 s at tele
- 1.34°
- Pose error, mediancommand vs camera
- 0.64°
- Largest correctionvision vs prediction
- 1.15°
- Zoom steps
- 37
Aircraft & route
- Flight
- VIR19Z
- Registration
- G-VPOP
- Type
- Airbus A350 1041
- Airline
- Virgin Atlantic
- From
- LHR · London
- To
- SFO · San Francisco
- Ground speed
- 239 kt
- Altitude at closest
- 11,000 ft
- Vertical rate
- -1,472 ft/min
- Category
- A5
- ICAO hex
- 4075b4
Pass geometry
- Max elevation
- 31.7°
- Elevation at start → end
- 17.8° → 15.6°
- Azimuth at start → end
- 326° NNW → 76° ENE
- Closest-approach azimuth
- 16° NNE
- Minimum slant range
- 6.3 km
- Heading at closest
- 111° ESE
- Aspect at closest
- side-on (85°)
- Turn
- turned left 27°
- Departure
- No
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 2:07 (127.4 s)
- Lock
- 89%
Build & tuning
The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.
- Build
- 2026-10-15r — keep the target past the sun; paced speed re-latch
- Commit
- 05024bb
- Node
- v22.22.2
- Camera
- TONGVEO 20x PTZ · 1920×1080 @ 30 fps
- Clip
- 62.5 MB · 124.9 s · offset -1.6 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
- -0.21
- 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