skylight.

SKW5627 SkyWest

Bombardier CRJ 200ER · N693BR · SFO → RNO

· 1:24Quality 86side-onDead-zone wrap

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −64%). 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
70%
First lockfrom target selected
5.0 s
Centring, medianaz / el while locked
0.41° / 0.27°
Centring, 90th pctaz / el while locked
1.40° / 0.77°
Tightest field of viewhorizontal
4.1°
Time to 8°from first lock
3.1 s
Time to tightestfrom first lock
5.7 s
Time at telefield of view ≤ 5.5°
27.1 s
Jitter at teleaz / el, standard deviation
0.45° / 0.36°
Swing at teleaz / el, peak to peak
2.41° / 1.73°
Pan reversalsper 10 s at tele
0.0
Largest pan hopin any 1 s at tele
6.25°
Largest tilt hopin any 1 s at tele
2.44°
Pose error, mediancommand vs camera
1.00°
Largest correctionvision vs prediction
1.49°
Zoom steps
68

Aircraft & route

Flight
SKW5627
Registration
N693BR
Type
Bombardier CRJ 200ER
Airline
SkyWest
From
SFO · San Francisco
To
RNO · Reno
Ground speed
293 kt
Altitude at closest
10,900 ft
Vertical rate
—
Category
A2
ICAO hex
a93604

Pass geometry

Max elevation
42.0°
Elevation at start → end
25.9° → 20.4°
Azimuth at start → end
322° NW → 203° SSW
Closest-approach azimuth
265° W
Minimum slant range
5.0 km
Heading at closest
179° S
Aspect at closest
side-on (86°)
Turn
straight (2°)
Departure
Yes — climbing out after take-off
Zenith pass
No
Dead-zone wrap
Yes — pan pre-positioned across the stop
Duration
1:24 (84.4 s)
Lock
70%

Build & tuning

The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.

Build
2026-10-13j — full 3.4 deg tele for slow planes (limit only above 0.5 deg/s)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
42.0 MB · 84.0 s · offset -1.3 s
pursuit
velocity
maxLeadSec
3
panLatencySec
0.6
tiltLatencySec
0.4
rippleDeg
0.5
rippleTeleDeg
0.25
rateFloorDegPerDps
2.5
rateFloorMaxDeg
12
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