40m QIL Cryo_Lab CTN SUS_Lab CAML OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
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Entry  Fri Mar 20 12:42:01 2015, Jenne, Update, IOO, Waking up the IFO 
    Reply  Fri Mar 20 13:29:33 2015, Koji, Update, IOO, Waking up the IFO 
    Reply  Fri Mar 20 16:44:49 2015, ericq, Update, IOO, Waking up the IFO 
       Reply  Fri Mar 20 23:37:46 2015, Jenne, Update, SUS, Waking up the IFO 
          Reply  Sat Mar 21 05:19:49 2015, Jenne, Update, LSC, IFO awake carm_cm_up_zip.sh.gz
          Reply  Sun Mar 22 13:53:44 2015, rana, Update, SUS, ITMX alignment jumps 
Message ID: 11153     Entry time: Fri Mar 20 23:37:46 2015     In reply to: 11152     Reply to this: 11154   11155
Author: Jenne 
Type: Update 
Category: SUS 
Subject: Waking up the IFO 

In addition to (and probably related to) the XARM ASS not working today, the ITMX has been jumping around kind of like ETMX sometimes does.  It's very disconcerting. 

Earlier today, Q and I tried turning off both the LSC and the oplev damping (leaving the local OSEM damping on), and ITMX still jumped, far enough that it fell off the oplev PD. 

I'm not sure what is wrong with ITMX, but probably ASS won't work well until we figure out what's up.

I tried a few lock stretches (after realigning the Xgreen on the PSL table) after hand-aligning the Xarm, but the overall alignment just isn't good enough.  Usually POPDC gets to 400 or 450 while the arms are held off resonance, but today (after tweaking BS and PRM alignment), the best I can get POPDC is about 300 counts. 

Den and I are looking at the ASS and ITMX now.

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