Summarized H1 issues from last Fri/Sat & how we did over the weekend:  Combination of environment & ALS glitching possible culprit for issues Fri/Sat.  However we've been locked since about noon on Sat (going on 45hrs).

RF45 appears stable (will prob hold off on swapping cable until/if issue comes back & NOT address during Maintenance.  Only address if needed).

Also discussion of "Freeze".  Sounds like we are still in a partial freeze.  

There was discussion about allowing Beam Tube repairs (will be discussed offline).

Commissioning & Any Invasive Activities:  

• All activities need to be covered by a Work Permit during O1!
• Single IFO data is still used for pulsar investigations!

Regular Tues Maintance Activities 

There are activities which occur every week and these do not require a Work Permit, but need to be done on a recurring basis.  A short list of these (also on whiteboard) is:

• ETM charge Measurement
• PSL WD Button
• "REAL" LVEA Sweep
• 3rd IFO Storage monitor & maintenance
• HEPI fluid levels monitor
• N2 Delivery
• A2L Decouple Measurement

10/6 Tues Maintenance Activities

Ed is Operator on shift (& TJ is available as a secondary operator, if needed)

• EX annulus ion pump swap, 3-4hrs, start early (Gerardo/Kyle)
• HEPI pressure sensor swap (Hugh)
• Reset power watchdog on PSL (will do every week and not need work permit) (Jason)
• Forklift LSB to Mechanical & check humidity sensors for dry cabinets (bartlett)
• More DMT channels to EPICS (hanks)
• SDF slow control/beckhoff test, requires DAQ restart (hanks)
• 8-9 no internet (ryan)
• rolling racks pulled out of lvea & 3IFO checks (jodi)
• angle to length decoupling measurement (sheila)
• OMC change during lock acquisition (Sheila)
• Lockloss tracking (Sheila)
• -200m work for VAC (Richard)
• PEM injection set up (Robert)
• EY glitch investigations (Robert)
• ETM Charge measurements (Betsy)
• Two nitrogen loads
• LVEA Sweep, still in a holding pattern, but will address minimal-affecting items