TITLE: 04/15 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 107Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY:

6.5hrs of OBSERVING this shift, and then ~4hrs of Approved Commissioning (TCS OMC scans) started at the end of shift and will carry over to the evening.
LOG:

• 15:45 TCS Chiller & HEPI level checks (Ed)
• 19:49 Glitch seen (by Sheila/Jenne) on several ASC PITCH Control signals (seen on nuc6) drift for PRC2 & SR2 (latter took step down and took over 10min to return).  
• 21:05 Shut off circuit breakers for LVEA roughing pumps (this allows their removal later by VAC) [Richard WP#8172]
• 21:27 Out of Observing for APPROVED Commissioning: OMC scans for TCS for ~4hrs  (WP#8170, Danny Sheila)
• 21:27 (while out of Observing) Calibration Line frequency correction made (JeffK)
• 21:28 LOCKLOSS
• 22:26 Handing over to Danny after getting H1 to PREP_DC_READOUT_TRANSITION for his OMC scans.

My Locking Notes:  DRMI alignment tweaking & OMC Carrier

1)  If dropping out in steps between DRMI & DC Readout, tweak up alignment by stopping at CHECK_AS_SHUTTERS, and then:  tweak PRM & SRM to get POP18 up to 60 & POP90 down to 15. (Thanks to Jenne for the reminder she's told me several times before!)  :)  

2) If one gets a message for the OMC not finding the carrier, one can not do anything and wait for the 600sec sleep for ISC_LOCK, or open up the OMC_LOCK node and request FIND_CARRIER (it'll go DOWN & then find the carrier).  One can do this request eventhough this node is managed.