Monday

• Place the bars on the in-vac tables to mark the positions of the test mass suspensions. (ITMX/ITMY/ETMX/ETMY)
• Check the table leveling again (ITMX/ITMY/ETMX/ETMY/BSC)
• Align the whole interferometer.
• Check the OPLEV spots by either QPDs or apertures
• Check the OSEM values (MC1/2/3, BS, PRM, SRM, ITMX, ITMY, ETMX, ETMY)
• Energize OMC PZTs.
  • We have removed the cards at the back of the HV driver.
  • Insert the card and check the connection.
  • Adjust the DC values at the middle of the range.
    -> They have an internal bias circuit to provide +75V at the outputs. (D060287).
    The actual voltages confirmed.
  • Adjust the physical knobs of the PZTs such that we can see the spots at the OMCR cam
• If everything is fine, attach the access connector.
• If still everythig is fine, put the BS heavy door.

Tuesday

- Do the following list for all of the testmass chambers.

• Check if the OSEMs and the OPLEV are still fine.
• Inspect the surface of the mirror with a laser pointer or a fiber coupled halogen light.
• Blow the mirrors by the ionization gun.
• Inspect the mirror surface again.
• Move the suspension tower close to the door.
• Make a single drag-wipe with iso
• Move the SOS tower at the original place.
• Check the OSEMs and the OPLEVs. Adjust the alignment.
• Put the heavy door.

- Start slow pumping