Today, Travis and I continued alignment of the main and reaction chains of the ETMX QUAD.  We watched the OPLEV beams to guide us in pitch and yaw.  While there are a few reflections of this oplev beam, we convinced ourselves that we had the one that was from the first (HR) reflection.  However, now that it is on the OPLEV diode, the sum is lower than it was when the suspension was last in chamber a couple months ago, so will do a PCAL beam check first thing tomorrow morning, before getting too far ahead of ourselves.  All 6 top Main chain BOSEMs were attached and centered around their flags in X,Y,Z directions.

Meanwhile, Fil joined us to perform HIPOT testing right at the connector on the AERM mass.  The problematic BIAS and LR pins failed the test, so we will embark on disassembling the connector and reterminating those pins per procedures.  TBC...