Related: 20148

I remeasured the intensity-to-DARM coupling by injecting into the ISS inner loop error point. The outer loop was not engaged.

The coupling is 0.2 mA/RIN at 100 Hz, or (after accounting for the loop and the optical gain) 4×10⁻¹⁴ m/RIN. This is consistent with Kiwamu's previous measurement.