Reports until 08:05, Thursday 21 September 2023
LHO General (CDS)
ryan.short@LIGO.ORG - posted 08:05, Thursday 21 September 2023 - last comment - 08:53, Thursday 21 September 2023(73020)
Ops Day Shift Start

TITLE: 09/21 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
OUTGOING OPERATOR: Ryan C
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 11mph Gusts, 8mph 5min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.25 μm/s
QUICK SUMMARY: As mentioned by RyanC in his alog, IOPSUSH7 is showing several issues, causing the SWWD for HAM7 to be tripped; tagging CDS. This has left H1 without squeezing and out of observing since 10:48 UTC, but it has still been locked at low noise for almost 13 hours.

Images attached to this report
Comments related to this report
rahul.kumar@LIGO.ORG - 08:08, Thursday 21 September 2023 (73021)

We have moved FC1, ZM1, ZM2, ZM3 and OPO suspensions into SAFE state until the CDS issues are resolved.

rahul.kumar@LIGO.ORG - 08:53, Thursday 21 September 2023 (73024)

All suspensions in HAM7 are now back online and into ALIGNED state after Fil reset the DC power supply and Dave restarted the computers.