HAM7:

• HAM7 -> HAM5 -> HAM6 injection, alignment check and power measurement (65110).
• Rebalanced.
• Ground loop check was done, ready for the door. According to Rahul, there's a ground problem for ZM3, needs to be revisited tomorrow.

HAM6:

• New picture of OMCR DCPD shows that it probably has a cracked glass at the edge (65117). No replacement/mitigation at this point.
• Septum viewport adapter was removed (O-ring was stuck to the septum adapter plate side and had to be pulled manually by Jim).
• Septum accelerometer was put back on (see picture), cable was plugged back in, and the digital channel was confirmed to be active.
• Visual check of OSEM blade clearance was done for OM2 (because we rebalanced on Fri.). They were good. OM2 OSEMs were also recentered.
• Preliminary TF for OM1/OM2/OM3 were done while the HAM5-side purge was turned off by Gerardo (HAM6 covers were off). They looked OK but the coherence isn't good for OM1 and OM3. The purge was turned back on after that.
  • Rahul will retake TFs overnight. After consulting with Gerardo, the HAM5 gatevalve was left half-open with aluminum foil cover. That way the corner purge air mostly goes out of that and won't blow into HAM6 so the TFs will be hopefully better. HAM6 purge is on as well as HAM5 purge, so they pressurized relative to the surrounding clean room.
• Jim and Ryan worked on cable routing.
• Jim and Ryan worked on rebalancing.

What's yet to be done.

• If Raful's overnight TFs aren't great, he will talk to Gerardo to turn down the purge.
• Ground loop check for HAM6 needs to be done as some of the cables were rerouted.
• Ground loop fix for HAM7 ZM3.
• Exit photos and sweep.