After multiple errors were noticed in our change of basis calculations, we have been checking and recalculating all of them carefully. The results are compiled in T1000388. This document shows:
- the ISI and HEPI orientations with respect of the IFO axis
- the instruments locations and orientations
- the math and programs used to calculate the matrices
- the matrices for every set of sensors, and for each of the two possible modules orientation
- where the matrices are saved in the svn and how they are named
- the transfer functions for each type on instrument
- the old naming convention that we changed because it was too confusing

After thorough review, we are now confident with the HAM-ISI, HAM-HEPI and BSC-HEPI set of matrices. The BSC-ISI review is still in progress. 

Today we installed the HAM-ISI, HAM-HEPI and BSC-HEPI programs and mat files in the local directories, and we committed them in the svn. The old matrices have been backed up in "archives" sub-folders.

We have started populating the new (good) matrices in ETMX. In the coming days, the good matrices will have to be populated in other chambers when commissioning activities allow to do so. Safe.snap files will have to be saved accordingly.