2023 motion system position

motion system position for 2023 as discussed in TB slide 10 https://indico.cern.ch/event/1299140/contributions/5462860/attachments/2672489/4633151/20230623_VELO_News_TB.pdf

xC = -23.4 and
xA = 25.6mm 
y= 1.53mm

shifted by 1mm in x and y to approximate the effect of the rotation in Rz

xC = -22.4 and
xA = 24.6mm 
y= 0.53mm