corey.gray@LIGO.ORG - posted 18:38, Friday 28 August 2026 (91729)
Fri Ops EVE Summary
TITLE: 08/28 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:
At the begining of the shift ETMy ESD was being restored and then this allowed Commissioners to work on locking (since ETMx is finicky, they were working on using ETMy (which has its own problems) for ALS DIFF---see Elenna/Louis alogs.
LOG:
- 2342-0118 Started Locking work (elenna, louis, sheila)
- ISC_LOCK taken to GREEN ARMS MANUAL--->ALSy made it to ETM TMS WFS OFFLOADED ( they started locking after they turned Sheila/Marc turned ON the ETMy ESD at EY...Sheila said they probably could have turned it on from the Corner)
- Due to ETMx, ALSx only went to LOCKING
- Worked on ALS DIFF with ETMy (which has the issue of a bad quadrant)
- ISC_LOCK taken to GREEN ARMS MANUAL--->ALSy made it to ETM TMS WFS OFFLOADED ( they started locking after they turned Sheila/Marc turned ON the ETMy ESD at EY...Sheila said they probably could have turned it on from the Corner)
- 2347 DONE: Tour for SRS visitors (mike,daniel)
- 2349 DONE: EX grounding studies (robert)
- 2352 DONE: Checking ESD at EY (sheila, marc)