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Enhanced NoiseFloorMon : offline analysis results R. Stone & S. Mukherjee Center for Gravitational Wave Astronomy Department of Physics and Astronomy University.

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Presentation on theme: "Enhanced NoiseFloorMon : offline analysis results R. Stone & S. Mukherjee Center for Gravitational Wave Astronomy Department of Physics and Astronomy University."— Presentation transcript:

1 Enhanced NoiseFloorMon : offline analysis results R. Stone & S. Mukherjee Center for Gravitational Wave Astronomy Department of Physics and Astronomy University of Texas at Brownsville.

2 Introduction NoiseFloorMon is a median-based noise floor tracker in operation at L0 and H0 The monitor tracks slow non-stationarities as opposed to glitches or sharp transients. The monitor was developed in 2005 and tested on- site and has been in operation throughout S5

3 Changes made … Earlier : Tracking AS_Q. Frequency bands: 0-20, 20-100, 100-200 and 200-2048 Hz. Percentage threshold crossings are recorded and minute trends stored. Offline analysis: - looking at trends on a daily basis - comparison with BurstMon output - activities in different frequency bands - correlation with SenseMon output Now : Tracking AS_Q and all seismic channels. Frequency bands : 0-16, 16-32, 32-64, 64-128 Hz. Minute trends of max threshold crossing and cross correlations with the seismic channels stored. Offline analysis : -looking at trends on a daily basis -studying cross correlations with the seismic channels -Looks up other monitors for comparison.

4 Location of results/ reports … People … Daily update is made (mostly automated/minimal supervision) and can be accessed at : www.phys.utb.edu/~soma/MNFTresults/NoiseFloorMon_daily.html Some analysis results/shift summaries can also be found at : www.lsc-group.phys.uwm.edu/glitch/investigations/s5index.html People who have been involved at various stages of this work S. Mukherjee (algorithm and main code); Roberto Grosso (DMT code); R. Stone (present offline analysis). Past result web page maintenance : T. Inoue & M. Oyervides (undergraduate students).

5 Typical output

6 List of auxiliary channels studied EX_SEISXEY_SEISX EX_SEISYEY_SEISY EX_SEISZEY_SEISZ LVEA_SEISXMX_SEISY LVEA_SEISYMY_SEISX LVEA_SEISZMY_SEISY MX_SEISXMY_SEISZ MX_SEISZ H0:PEM-L0:PEM- EX_SEISXLVEA_SEISY EX_SEISYEY_SEISX EX_SEISZEY_SEISY LVEA_SEISXEY_SEISZ LVEA_SEISY

7 H1

8 H2

9 L1

10 Q-scan links http://ldas-jobs.ligo-wa.caltech.edu/~soma/qscans/857678593.0/ http://ldas-jobs.ligo-wa.caltech.edu/~soma/qscans/857669473.0/ http://ldas-jobs.ligo-wa.caltech.edu/~soma/qscans/857678893.0/ http://ldas-jobs.ligo-wa.caltech.edu/~soma/qscans/857682013.0/ http://ldas-jobs.ligo-wa.caltech.edu/~soma/qscans/857682133.0/

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