Betsy, Rahul

We have been trying to look through and analyze the spectrum of the ETMX coil drivers from 1 -100Hz, to help investigate today's lock loss at LHO. The attached files shows the DTT screenshots of the coil drivers for the ETMX and ITMY (which had a template from 2018). ETMX did not have any slow channel template (DQ), due to which we were unable to look into the history, for the 16k channels we cannot go back in time and look for trends. Now we have created a fresh DTT template to see the spectrum of the ETMX coil drivers, the location of which is given below,

/ligo/svncommon/Sussvn/sus/trunk/QUAD/2019-08-15_2102_H1SUSETMX_OSEM_ASDS.xml

After looking through the spectrum of the coil drivers and comparing through the past data, we could not find anything out of order over here.