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Reports until 08:43, Monday 23 November 2015
H1 DetChar (DetChar, PEM)
vincent.roma@LIGO.ORG - posted 08:43, Monday 23 November 2015 (23658)
Upconversion so far in O1

The plots being presented here were made by an upconversion/downconversion finding tool called NCOR.  An explanation of the tool and how to interpret the resulting plots can be found HERE.

To make the plots presented in this post all "analysis-ready" lock times of O1 have been included.  That is all data from Sept. 14th - Nov. 22nd when the "analysis-ready" flag was active.  Each point in these plots is 32 seconds of data.  In general all 60 Hz harmonics have been notched out, as well as the violin mode peaks in the higher frequency bands.  Robert Schofield has given me valuable help with the analysis, including channels to look at, and the list of channels searched at both sites can be found here: LHO     LLO .

Some of the most interesting upconversion bands are shown below:

.1 - .3 Hz -> 55 - 65 Hz

LHO     LLO

.1 - .3 Hz -> 85 - 110 Hz

LHO     LLO

.1 - .3 Hz -> 50 - 200 Hz

LHO     LLO

.3 - 1 Hz -> 55 - 65 Hz

LHO     LLO

.3 - 1 Hz -> 10 - 50 Hz

LHO     LLO

.3 - 1 Hz -> 85 - 110 Hz

LHO     LLO

.3 - 1 Hz -> 50 - 200 Hz

LHO     LLO

10 - 30 Hz -> 85 - 110 Hz

LHO     LLO

30 - 50 Hz -> 85 - 110 Hz

LHO     LLO

30 - 50 Hz -> 121 - 200 Hz

LHO     LLO

30 - 50 Hz -> 1000 - 2000 Hz 

LHO     LLO

The directories with the full results, including all band-pairings, can be found here: LHO     LLO .

I did search for downconversion as well (from the 700 - 900 Hz band and the 700 - 1200 Hz band) but I did not find too much of interest.  Those results can be seen in the full results directories.  If anyone has any specific frequency bands or channels they would like looked at I am happy to analyze them.

 
.3 - 1 Hz -> 85 - 110 HzLHO
LLO
LHO
LLO
 
.1 - .3 Hz -> 85 - 110 Hz
LHO
LLO
 
.1 - .3 Hz -> 50 - 200 Hz
LHO
LLO
 
.3 - 1 Hz -> 55 - 65 Hz
LHO
LLO
 
.3 - 1 Hz -> 10 - 50 Hz
LHO
LLO
 
.3 - 1 Hz -> 85 - 110 Hz
LHO
LLO
 
.3 - 1 Hz -> 50 - 200 Hz
LHO
LLO
 
10 - 30 Hz -> 85 - 110 Hz
LHO
LLO
 
30 - 50 Hz -> 85 - 110 Hz
LHO
LLO
 
30 - 50 Hz -> 121 - 200 Hz
LHO
LLO
 
30 - 50 Hz -> 1000 - 2000 Hz
LHO
LL
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