TITLE: 09/28 [DAY Shift]: 15:00-23:00 UTC (08:00-16:00 PDT), all times posted in UTC

STATE Of H1: Observing at ~70 Mpc.

SUPPORT: Peter, Mike, Laura

QUICK SUMMARY: Reducing RF45 modulation index definitely helps with the glitch rate. Lockloss twice within the shift due to an earthquake and PSL tripped. Had no problem relocking. Wind speed ~10mph tilts the ground and increase the seismic activity in the earthquake band (0.03-0.1Hz) to 0.05 um/s.

INCOMING OPERATOR: Travis

ACTIVITY LOG:

Morning Meeting:

- We have had good weekend locking, but not a good running. Driver swap tomorrow.

15:51 Lockloss due to an earthquake. Adjusted PR3 to maximize COMM beatnote. Touched BS to get DRMI locked at the right mode.

16:27 Back to Observing.

17:37 RF45 was acting up. Dropped the intent bit to reduce RF45 mod index. Kept the configuration as Laura suggested and continued to Observe.

18:12 Lockloss due to PSL tripped. Peter turning the laser back on.

           Praxxair on site. Going to Mid Y. Intent bit dropped.

18:20 Peter back

18:46 Locked again at NOMINAL_LOW_NOISE but not Observing. Waiting for Praxxair to leave site.

19:49 Praxxair hasn't moved for a really long time. I switched the bit to Observing.

19:51 Out of Observing. Praxxair leaving site.

19:56 Back to Observing.