Memo to self:

Since the HAM3 oplev mirror was installed after the POP/ALS path alignment was done, and since Thomas wasn't aware that there is a beam path there when he installed the oplev mirror, I asked Cheryl to check if the oplev mirror mount is occulting the POP/ALS path next time she goes to HAM3.

If both oplev mirror and POP/ALS steering mirror are at the location specified by D0901094, it should be OK.