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Message ID: 1831     Entry time: Mon Nov 25 16:43:50 2019
Author: Duo 
Type: DailyProgress 
Category:  
Subject: Time domain projection is consistent with LLO data (except LL channel, which saturates) 

We see a report of noisemon problem from LLO: https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=49892

The time domain data is projected with the transfer function measured here: https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=43212

We projected the output of the noisemon signal on time domain (attachment 1).

Attachment 2 is data from LLO posted in the alog above. Compare this with attachment 1, we can see our projection has roughly the same values with the other three channels. This means those channels have high number of counts because the drive signal is bigger. In other words, the other three channels should be working ok.

I attached the drive signal being projected in attachment 3.

Attachment 4 has all the data and code.

Attachment 1: timeresponse.pdf  64 kB  | Hide | Hide all
timeresponse.pdf
Attachment 2: 49892_20191113153034_ITMY_NoiseMon.png  165 kB  | Hide | Hide all
49892_20191113153034_ITMY_NoiseMon.png
Attachment 3: drive.pdf  33 kB  | Hide | Hide all
drive.pdf
Attachment 4: archive.tar.gz  7.904 MB
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