40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Entry  Fri May 16 00:25:53 2014, rana, Update, PSL, PMC realign 
    Reply  Fri May 16 09:46:05 2014, Steve, Update, PSL, pointing monitoring 
Message ID: 9960     Entry time: Fri May 16 00:25:53 2014     Reply to this: 9961
Author: rana 
Type: Update 
Category: PSL 
Subject: PMC realign 

 Tonight I noticed that the drop in PMC transmission was ~1V, more than the usual of ~0.5V from the daily drift.

While re-aligning on the table, I noticed that the misalignment was not from either of the steering mirrors; i.e. I has to walk them both to get the alignment back. This implies that the misalignment is generated far upstream. Maybe the the laser itself is moving. We need some updates from Steve's laser misalignment tracker.

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