X1 QUAD 03 BUILD 03
Attached are plots of the X1 QUAD 03 BUILD 03 M0 & R0 TF measurements from last night along with measurements from 01/06/2012. For the M0 mass, there is virtually no change in the resonances from the two measurements, which is expected. The R0 chain, however, is the chain where the cabling attaches between stages. On R0, all DoFs except Pitch appear to have not been affected by the cable lacing. The R0 Pitch plot (pg 5) indicates the second major pitch mode has stiffened quite a bit since the 01/06/12 measurement. The DC Pitch also decreased slightly for this measurement. Cabling between the stages may be the cause of the extra Pitch stiffening on R0, so a reassessment of the R0 cabling could prove useful.