Sheila, Rahul

We have been trying to follow and analyze the CARM_TO_TR locklosses. In the last week or two there have been at least 8-10 locklosses attributed to this. Based on the list of channels created by Sheila for diagnostics, I am posting the last 6 CARM_TO_TR locklosses. Looking at the channel (QPDs at the end of both the arms, sums of which are used for monitoring the arm powers) H1:ASC-X_TR_B-NSUM_OUT_DQ, its ringing up with frequencies ranging from 60-100Hz. I will have a look at it during different stretches of lock.