TITLE: 09/21 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Observing at 152Mpc
INCOMING OPERATOR: Oli
SHIFT SUMMARY: Very quiet shift, H1 remained locked throughout. Only events of note were a brief drop in observing because of the SQZ PMC and an earthquake passed through.

• 00:51 - Dropped observing from "PMC_REFL_RF35 demod error" in SQZ_PMC Guardian (tagging SQZ)
  • Guardian brought everything back automatically
• 03:15 - Entered EQ mode from M5.6 quake out of Tonga
• 03:54 - Seismic back to CALM

H1 has now been locked for just over 24 hours.