T Sadecki, J Oberling

Today, with Jason's help, I installed the wire loop in the reaction chain and checked the relative roll between the PenRe and ERM (which was installed earlier in the week). I then suspended the ERM in a single hang and by-eye checked the relative pitch between the masses.  The pitch seemed acceptable (will be checked more quantitatively when we are able to do a double hang of the chain).  Currently the ERM is suspended in the lower structure for the purpose of proof testing the loop for slippage overnight.  Mating of the chains and attachment to the upper structure is up for next week.