TITLE: 11/04 Day Shift: 1530-0030 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Environment - Wind
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY: H1 has been down all shift due to high microseism for the first half of the day and high winds for the second. Meanwhile, we've been able to continue glitch investigations with the PSL/IMC from alog80990. We sat with the IMC locked and ISS off for 2 hours starting at 21:37 and saw no fast glitches (trend in first attachment, white background). After turning the ISS back on, things were calm for a while before the IMC lost lock at 23:54 (second attachment, black background). There were three more IMC locklosses within 10 minutes of this, but things have been steady again since.

• 15:30 - H1 down, starting initial alignment
• 16:12 - IA finished, starting lock acquisition
• 17:55 - No success in locking; H1 to IDLE for power cycle of h1psl0 and card swaps (alog81048)
• 20:38 - Chassis work finished, starting lock acquisition
• 21:24 - Wind too high to keep arms locked, holding in PREP_FOR_LOCKING
  • 21:37 - Leaving IMC locked and ISS first loop unlocked for testing
  • 23:38 - Adding in ISS

LOG: