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Entry  Wed Feb 22 16:55:16 2012, Jamie, Update, SUS, wacky state of SUS input matrices 
    Reply  Thu Feb 23 02:20:07 2012, Zach, Update, SUS, wacky state of SUS input matrices 
       Reply  Wed Mar 7 21:13:30 2012, rana, Update, DAQ, NDS2 
    Reply  Fri Feb 24 04:12:44 2012, kiwamu, Update, SUS, freeswing test 
       Reply  Fri Feb 24 08:06:52 2012, steve, Update, SUS, sus restored freePRM.pngnoisyPRM.png
Message ID: 6307     Entry time: Thu Feb 23 02:20:07 2012     In reply to: 6305     Reply to this: 6381
Author: Zach 
Type: Update 
Category: SUS 
Subject: wacky state of SUS input matrices 

This reminds me that the whole Dr. SUS situation never got taken care of. Where I left off, I was having issues pulling 40m data with NDS2 (which is what all the diagonalization scripts use).

What is the deal with 40m+NDS2? If it is till no-go, can we have a consensus on whether this is too important to wait for? If so, I will rewrite the scripts to use NDS and we can upgrade to NDS2 once we can prove we know how to use it.

 

Quote:

While Kiwamu and I were trying to investigate the the vertex glitches we were noticing excess noise in ITMX, which Kiwamu blamed on some sort of bad diagonalization.  Sure enough, the ITMX input matrix is in the default state [0], not a properly diagonalized state.  Looking through the rest of the suspensions, I found PRM also in the default state, not diagonalized.

We should do another round of suspension diagonalization.

Kiwamu (or whoever is here last tonight): please run the free-swing/kick script (/opt/rtcds/caltech/c1/scripts/SUS/freeswing) before you leave, and I'll check the matrices and update the suspensions tomorrow morning.

[0]

0.25 0.25 0.25 0.25 0
1.66 1.66 -1.66 1.66 0
1.66 -1.66 -1.66 1.66 0
0 0 0 0 1

 

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