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Message ID: 1830     Entry time: Thu Nov 14 17:14:32 2019
Author: Duo 
Type: DailyProgress 
Category:  
Subject: Noisemon problem observation 

Saturation occurs suddenly after running for hours without problem.

I tracked it since the drive was turned on (around 00:36:18) and found that it has been running ok for hours before this happens (attachment 1). Around 3:04:51, the LL channel saturated and then dropped back to normal level. After that, this kept happening and crashed the LL channel (attachment 3).

Attachment 2 is data corresponding to attachment 1.

Attachment 1: Screenshot_from_2019-11-14_17-13-46.png  67 kB  | Hide | Hide all
Screenshot_from_2019-11-14_17-13-46.png
Attachment 2: ts.xml  1.309 MB  | Hide | Hide all
<?xml version="1.0"?>
<!DOCTYPE LIGO_LW [
<!ELEMENT LIGO_LW ((LIGO_LW|Comment|Param|Time|Table|Array|Stream)*)>
<!ATTLIST LIGO_LW Name CDATA #IMPLIED Type CDATA #IMPLIED>
<!ELEMENT Comment (#PCDATA)>
<!ELEMENT Param (#PCDATA)>
<!ATTLIST Param Name CDATA #IMPLIED Type CDATA #IMPLIED Dim CDATA #IMPLIED
                Unit CDATA #IMPLIED>
<!ELEMENT Table (Comment?,Column*,Stream?)>
<!ATTLIST Table Name CDATA #IMPLIED Type CDATA #IMPLIED>
... 21160 more lines ...
Attachment 3: Screenshot_from_2019-11-14_17-26-55.png  58 kB  | Hide | Hide all
Screenshot_from_2019-11-14_17-26-55.png
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