Reports until 11:17, Monday 07 March 2016
H1 AOS
sheila.dwyer@LIGO.ORG - posted 11:17, Monday 07 March 2016 (25911)
ETMY M0 drive align P2P and Y2Y filters causing problem with offloading green wfs

For a long time we have not been offloading the green wfs from ETMY, because doing so would with the same code we use for END X would cause the optic to get a big kick.  This morning Jim and I gave this another try, and saw that the main difference between the test masses is that ETMY had some plant inversion from 1-10 Hz, when we turned this off we could offload ETMY without a problem. 

Apparently the current arrangement of ETM WFS used durring ALS locking needs these plant inversions to be on.