Got the Bench Mark Elevations from Scott(Apollo) and we can now put the numbers on the actual elevation.

Based on the end station zero datum being the middle of the B-nozzles on the BSC6 chamber, just as we've done in the LVEA (BSC2), the Optical Table is intended to be located at 1661.7mm (E1101071).  Our survey yesterday has the average elevation at 1661.8mm.  The reference bench marks we used were place at the end station last July when we rebuilt the External SEI, set the support tubes and installed the HEPI.

Very nice work Scott, Ed, Randy (Apollo); and GregG