skylight.

BAW28K British Airways

Boeing 777 36NER · G-STBE · LHR → SFO

· 1:16Quality 90lost lockside-on

3D replay

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 —
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
5.6 s
Centring, medianaz / el while locked
0.30° / 0.29°
Centring, 90th pctaz / el while locked
0.91° / 0.62°
Tightest field of viewhorizontal
3.5°
Time to 8°from first lock
5.3 s
Time to tightestfrom first lock
—
Time at telefield of view ≤ 5.5°
38.7 s
Jitter at teleaz / el, standard deviation
0.37° / 0.28°
Swing at teleaz / el, peak to peak
1.61° / 1.46°
Pan reversalsper 10 s at tele
0.3
Largest pan hopin any 1 s at tele
7.04°
Largest tilt hopin any 1 s at tele
2.13°
Pose error, mediancommand vs camera
1.15°
Largest correctionvision vs prediction
2.06°
Zoom steps
19

Aircraft & route

Flight
BAW28K
Registration
G-STBE
Type
Boeing 777 36NER
Airline
British Airways
From
LHR · London
To
SFO · San Francisco
Ground speed
265 kt
Altitude at closest
11,375 ft
Vertical rate
0 ft/min
Category
A5
ICAO hex
406591

Pass geometry

Max elevation
70.2°
Elevation at start → end
27.3° → 38.8°
Azimuth at start → end
331° NNW → 123° ESE
Closest-approach azimuth
50° NE
Minimum slant range
3.7 km
Heading at closest
140° SE
Aspect at closest
side-on (90°)
Turn
straight (0°)
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
1:16 (76.1 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
2026-10-14k — loop integrates real tick time; aim lead −0.2 s
Commit
33c2b35-k
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
38.0 MB · 76.0 s · offset -1.3 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
-0.28
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