We have re-run the script that measures spot positions in the IMC.  (The input beam moved during PSL work yesterday according to Cheryl's camera's 43710)

The spot positions' we got are: 

DOF   Mean Spot Position [mm] 
MC1 P     0.21  
MC2 P     1.595   
MC3 P     0.2713  
MC1 Y     0.1672 
MC2 Y    -0.805   
MC3 Y     1.0628  

These are not very different from what Craig posted here