With Hirata-san.

Summary:

See pictures in album PR2 Remedying Work.

We shook the suspension three times using the Trump method and measured the change in pitch using the laser level as an optical lever. The change each time was:

• 398 µrad,
• -398 µrad
• -663 µrad.
• See details in this notebook page.

The changes are relatively small for a procedure like the Trump method.

We also checked pitch with respect to the horizontal assuming the laser level is horizontal: the pitch is 11 mrad whereas our aim 3.3 mrad! We tried to correct it with the picomotor but the V1 OSEM flag begins touching the  OSEM body. We need to move the OSEM panel.