This morning the CO2 lasers were switched off in lock due to a safety system power failure. This was not a complete waste of time, as it gave us another data point about what happens when we lower CO2X.

I looked back at the same diagnostics as in alog 47958 (except for the AWG lines which are now turned off in observing). We see RF18 dropping: it looks like there is an initial fast decay and then a slower decay (maybe this corresponds to point absorber cooling, followed by substrate cooling?). Unfortunately it looks like the PCAL lasers were also affected, so we don't get any info about the cavity pole or Kappa_c.