Before commissioners need the main PSL beam for alignment work, I decided to touch up the PMC and RefCav alignments this morning as they came back worse off after having the PMC unlocked over the weekend.
With the ISS off, I started with PMC alignment:
After engaging the ISS and ensuring it was diffracting around 4% (no RefSignal adjustment needed), I moved on to RefCav alignment:
Decent improvements, but judging by the RefCav REFL spot, it's possible an on-table alignment touchup could help further (largely in pitch). I'll also want to recalibrate the rotation stage at some point before IFO locking starts, but that'll likely have to wait until we can send high power through to the MC REFL dumps and not onto the light pipe shutter.