UPS9871 UPS
Boeing 757 24APF · N403UP
· 0:54Quality 92side-on
Software-steadied: the hops of the camera motor are smoothed out (plane wobble −72%). 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
- 93%
- First lockfrom target selected
- 4.1 s
- Centring, medianaz / el while locked
- 0.16° / 0.20°
- Centring, 90th pctaz / el while locked
- 0.85° / 0.64°
- Tightest field of viewhorizontal
- 4.1°
- Time to 8°from first lock
- 6.1 s
- Time to tightestfrom first lock
- 8.6 s
- Time at telefield of view ≤ 5.5°
- 22.4 s
- Jitter at teleaz / el, standard deviation
- 0.29° / 0.19°
- Swing at teleaz / el, peak to peak
- 1.87° / 0.83°
- Pan reversalsper 10 s at tele
- 0.9
- Largest pan hopin any 1 s at tele
- 4.84°
- Largest tilt hopin any 1 s at tele
- 2.32°
- Pose error, mediancommand vs camera
- 1.53°
- Largest correctionvision vs prediction
- 1.39°
- Zoom steps
- 36
Aircraft & route
- Flight
- UPS9871
- Registration
- N403UP
- Type
- Boeing 757 24APF
- Airline
- UPS
- From
- —
- To
- —
- Ground speed
- 321 kt
- Altitude at closest
- 12,775 ft
- Vertical rate
- -384 ft/min
- Category
- A4
- ICAO hex
- a4b996
Pass geometry
- Max elevation
- 72.1°
- Elevation at start → end
- 52.6° → 33.7°
- Azimuth at start → end
- 344° NNW → 134° SE
- Closest-approach azimuth
- 46° NE
- Minimum slant range
- 4.1 km
- Heading at closest
- 140° SE
- Aspect at closest
- side-on (86°)
- Turn
- straight (13°)
- Departure
- No
- Zenith pass
- No
- Dead-zone wrap
- No
- Duration
- 0:54 (53.6 s)
- Lock
- 93%
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
- 26.5 MB · 53.0 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