Danny, Craig, Koji, TVo

We were hoping to run an SR3 Heater measurement and track the DARM cavity pole but we've been running into locking issues with microseisms at just under 1 um/s and winds around 30 mph.  At first there seemed to be some of those high frequency glitches in both ALS systems but they went away when we played with the TMSs (maybe it's a coincidence).

We manually aligned DRMI to get POP18 ~65 counts and POP90~15 which is the build-up levels we "normally" get but when we engage the ASC after locking DRMI 1f it pushes the beamsplitter till we lose lock which happened a couple times until we stopped at DRMI_LOCKED_PREP_ASC and manually tried to zero the MICH error signal, this seemed to help.  We were able to get up to NLN for maybe 15 minutes but ASC  rang up which I'm not able to tell which mode is starting it.  This makes our measurement hard because we were trying to wait for the IFO to reach thermal equilibrium (or at least 20-30 minutes) before turning on the SR3 heater.  We got back to NLN but lost it again with a relatively fast lock loss, I'm reminded of Craig/Koji's measurement of the PRCL UGF being closer to 30 Hz which might make it go unstable given our high useisms.