TITLE: 12/14 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Microseism
INCOMING OPERATOR: Ibrahim
SHIFT SUMMARY:
Microseism took a slight drop from its peak last night, but it still clearly above the 95th percentile (and just under 1µm/s) which continues to cause locking grief for H1 (but H1 managed surprisingly well with relocking earlier in the shift. Once themalized (and after a Saturday tour left the Control Room, performed the Saturday Calibration).
Also of note is our winds have been picking up for the first time in days; winds picked up around 1800utc (around when H1 relocked!), and then we had lockloss which was tied to our biggest gusts (over 40mph) + our above-95th-percentile
LOG:
- 1542-1544 h1 dropped from OBSERVING due to Calibration SDF change for CW gain going to 0 (was revered to 1)
- 1603 LOCKLOSS
- 1644 Initial Alignment started (since their were multiple locklosses at CHECK MICH FRINGES)
- ALSx had Crystal Freq issues which caused green arm part of initial alignment to take 15min.
- Handful of DRMI locklosses and then eventually locked with a shaky start and then all the way to NLN with no issues.
- 1821 OBSERVING
- 2nd Saturday Tours in Control Room
- 1941-1954 (1141-1154am) Janos & Austin (~15visitors)
- 2014-2035 (1215pm) Francisco (~22visitors)
- 2145-2210 (145-210pm)Fred (~23 visitors)
- 2211 Saturday Calibration was run
- 2234 Pcal measurements (francisco)
- 2314 LOCKLOSS
- Have run an alignment, but this was during the wind storm
- Handing over to Ibrahim as we the winds have just started to come down.