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.
  • Temperature issues through the LVEA for a while, perhaps causing lock losses. Fixed during Tuesday's maintenance. Hopefully better temp control now.

  • Noise subtraction is not tuned to higher power yet. Temperature affecting alignment. Extra erroneous poles in the digital control systems - HAM ISIs. Ring heat changes, CO2 changes.

• Bump at 120 Hz, overlapping with the powerline harmonic. Coherent with jitter witness channels (Jennie Wright and Andy Lundgren)
  • See further alog by Victoria 
• 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

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