Yesterday afternoon Terry and I made another attempt at aligning the beam from the OPO into HAM5, but we weren't able to find a beam returning to HAM6.  

We are able to see ZM2 from the east viewport on the north side of HAM5, and we can see the back side off the OFI kickoff mirror that the beam from ZM2 is supposed to hit.  We can tell that for some alignments our beam is hitting the optic holder for ZM2, but other than that we don't really know where the beam is.  

Today we will try with the HAM5 illuminator plugged in, and perhaps repeating the aperture alignment with more care.