TITLE: 04/27 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 61Mpc
INCOMING OPERATOR: Jim
SHIFT SUMMARY:

Nice shift up until a quick lockloss and then had more significant downtime due to EX computer issues.
LOG:

• 11:51-12:24  Out for Lockloss
• 13:10 - 14:40 Down for EX SEI Frontends (Richard, Dave, Corey, TJ)
• 14:40 Back to Normal & Back to Locking (went to LOCKING, but since ETMx was misaligned from frontend issues, so went back to CORRECTIVE MAINTENANCE & will stay here until we are back to NLN....in hindsight, I should have just stayed in CORRECTIVE MAINTENANCE.)
  • ALSx:  No light observed on video---> PDH Error on ALS Overview ---> Power Too Low (which basically means someone is too misaligned to give us any green light in the arm (hence no light in the video).  
  • Tried running the TMSx dither script (saw some light during the process, but it went away when script ended).
  • Tried running the ITMx dither script....this is where I handed off to Jim.
• I will write up an FRS for the EX SEI frontend issue (unless Dave or Richard beat me to it).