Reports until 13:14, Wednesday 27 December 2023
H1 General (SEI, SUS)
anthony.sanchez@LIGO.ORG - posted 13:14, Wednesday 27 December 2023 (75054)
Wednesday Ops mid Day Shift Report

TITLE: 12/27 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Aligning
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 11mph Gusts, 7mph 5min avg
    Primary useism: 0.06 μm/s
    Secondary useism: 1.60 μm/s
QUICK SUMMARY:
16:11 UTC Lockloss from Power_10W.
Trying an INITIAL_ALIGNMENT

Locking Attempt #1: Lockloss from LOCKING_ALS 17:31 UTC
Locking Attempt #2: Lockloss from LOCKING_ALS 17:33 UTC
Locking Attempt #3: Lockloss from LOCKING_ALS 17:36 UTC
Locking Attempt #4:
    Holding in LOCKING_ARMs_GREEN for a fe minutes to see If I can let things settle down a bit more.
    LOCKLOSS from LOCKING_ALS 17:42 UTC
Locking Atttempt #6: made it to FIND IR!!!  Lockloss at AQUIRE_DRMI_1F
 



A hand full of locks have made it up to MAX_POWER! but then LOCKLOSS.

After several attempts to Lock, and several Locklosses at MAX_POWER, I've decided that perhaps waiting in CHECK_VIOLINS and damping at 2W before going to MAX power might be the trick to succesfully get past MAX_POWER. Since the Violins are very high. 
 

19:15 UTC lockloss from MAX_POWER
 max Move Spots & MAX_POWER.

Hanford Monthly Alert system, sirewns will be activate at 1pm (21:UTC) .   

Got into Check violins before power up and paused here to reduce violins before moving to max power.

Edit: Damping the Violins did not help in any noticeable way.