TITLE: 03/21 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Aligning
INCOMING OPERATOR: None
SHIFT SUMMARY:
H1's been having issues staying locked for more than 45-90 minutes in the last day. Acquisition is decent, although most lock attempts I have proactively went to CHECKMICHFRINGES + PRMI. LOCK CLOCK is not working. Automatic Operation appeared to not work once, but for other couple of attempts it worked.
LOG:
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- 2256-2330 Initial alignment
- 2313 Run down X+Y arms (gabriele)
- 2329 End of SHG optics lab work (julian)
- 2330-0010 Lock#1: Nice & straightforward lock. For the last 45min Evan had some MICH excitations, and Naoki did some SQZ work.
- 0010-0055 NLN, but another short lock similar to what (4) other locks during the day. :-/
- 0156 Observing (NLN at 0152)--Automatic Operation did NOT take H1 to Observing for some reason.
- 0320 Lockloss with an ITMx SEI ISI Watchdog trip via the CPS'.
- 0323-0340 Lock#2: Lockloss during PRMI after Check Mich Fringes
- 0341-0424 Lock #3: Went directly to Check Mich Fringes and then PRMI.
- 0428-0559 OBSERVING (NLN @ 0424) via Automatic Operation (woo woo!)
- 0600-0605 Lock #4: Lockloss at LOCKING ALS. X-arm was harder to offload, but eventually did (with out flashes)
- 0606-0653 Lock#4: Xarm clearly less stable than Y. But it gets there (offloaded) within 2min this time. Gave DRMI 3min to lock and then moved to CHECK MICH FRINGES + PRMI & then DRMI locked within 2min.
- 0657 Back to Observing and placed in Auto Ops.