Other activities in the area resulted in the CRYO-X ACC (H1:PEM-CS_ACC_LVEAFLOOR_XCRYO_Z_DQ) being knocked loose from the floor.  I cleaned the floor and ACC base and secured it with the PEM approved/special double-sided tape (seemed very secure.)  Also, the CRYO-Y instrument was checked and I found it attached but seeming very loose.  It was attached with a thick (1/32-1/16") foam double side tape which seemed old/deteriorated.  This attachment material is not approved!  I reattached it with the proper tape.

Attached are times series and spectra spanning the job.  The time-series are 3 days, the Tuesday am activities is obvious with the improved noise evident.  The spectra clearly reveal where the noise originates (fairly localized spots.  The REFs are the before.  Be mindful that I've been inconsiderate in that the DV and DTT plots are reversed in the X/Y top/bottom sense.  The unconnected and sort-of-attached spectra are quite different.  We may want to periodically inspect these instruments for security and make sure no unapproved tape has been used.