Naoki, Vicky

Today we found that ZM6 output is close to saturation. We looked at ZM6 output and found three jumps in ZM6 output yesterday as shown in the attached figure. The first and third jumps are from the Set ZM HD and Set ZM IFO for homodyne work yesterday. The second huge jump (~10000) appeared in ZM5/6 and this would be the cause of the ZM6 saturation. This huge jump happened when the SQZ_MANAGER guardian moved from LOCK_CLF(30) to SQZ_READY_HD(40) at 12:30 PDT yesterday and this would be the cause of the strange seed alignment jump happened during homodyne work yesterday as reported in alog73365. We looked at SQZ_READY_HD state in SQZ_MANAGER guardian and found that there is a reset of SQZ ASC offset in the state. We commented out this offset reset. We need to offload ZM6 again as alog73171.