TITLE: 03/22 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 143Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:

Even with a lockloss 50min into his measurment, Robert was able to get the base minimum needed for his measurements in the LVEA this evening while L1 was down.  So this activity can be taken OFF the Weekend To Do List for operators!

Continue to have the User Message about SQZ_OPO_LR having high Rejected Power (tagging SQZ).

LOG:

• 2257 Noticed L1 possibly being down via GWIstat (checked L1 screenshots and most of them looked like L1 was down; also checked on LLO via Teamspeak). 
  • 2302 H1 out of Observing for Robert S. 1-hr Measurement Time
  • 2351 LOCKLOSS:  Due to commissioning via HEPI BS for Robert's work
  • 2352-0013 Initial Alignment
  • 0002-0008 Robert heading out to LVEA to restore everything for Observing.
• 0300 LOCKLOSS (nothing obvious, gps1426734059)
  • Tried to go WITHOUT running an alignment since H1 was only locked 2hrs--X & Y arms were fine, but DRMI looked horribly dead (and CHECK MICH FRINGES did nothing to inject alignment life into PRMI).  So an Initial Alignment was run.....
  • But the first alignment had very noisy ASC channels during the PRC ALIGN (with the PRC1 p/y channels being extremely noisy---This was new to me!---see attachment #1).  At this point, I ended alignment attempt #1 and started a 2nd alignment...this one had a much more normal looking PRC ALIGN.
  • Through both of the attempts at locking tonight, ALSx exhibited noise as H1 started FIND_IR.  Sometimes h1 survived, other times the noisy ALSx would cause a lockloss (also a new feature to me!  See attachment #2 for an example which led to a lockloss).
• 0441 Back to Observing