Old DQ shift entry. Forgot to put an alog in. Apologies for the deelay.
DQ Shifter: Sharan Banagiri. Fellows: Jennifer Wright, Brina Martinez
- Several summary page issues throughout the week
- Lockloss issues earlier in the week (continuing on from the previous week). Appears to have stabilized at the end of the week.
- Bump at 120 Hz, overlapping with the powerline harmonic. Coherent with jitter witness channels (Jennie Wright and Andy Lundgren)
- ASC channels (e.g. H1:ASC-CHARD_P_OUT_DQ) introducing low-frequency noise early in the week, seem to disappear later on
- H1:PEM-EX_VMON_ETMX_ESDPOWER48_DQ pops up on Hveto towards the end of the week. Seems strange that an ESD witness channel seems picking glitches.
- Gravity volunteers identified a ~600 Hz glitch that show up after May 30.
- Loud broadband noise for a minute before lock loss at 20:13 UTC on Friday. Jennie Wright said this was a parametric instability that caused a runaway instability and lockless