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Analysis of L1 WaveMon S2 veto triggers Ken Yoshiki Franzen University of Florida

Analysis of L1 WaveMon S2 veto triggers Ken Yoshiki Franzen University of Florida. Outline: Introduction Data processing status Produced veto triggers Veto of Waveburst triggers Summary and plans. WaveMon: Time frequency analysis in the wavelet domain

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Analysis of L1 WaveMon S2 veto triggers Ken Yoshiki Franzen University of Florida

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  1. Analysis of L1 WaveMon S2 veto triggers Ken Yoshiki Franzen University of Florida LSC November 2003 KYF

  2. Outline: • Introduction • Data processing status • Produced veto triggers • Veto of Waveburst triggers • Summary and plans LSC November 2003 KYF

  3. WaveMon: Time frequency analysis in the wavelet domain • www.phys.ufl.edu/LIGO/bursts for documentation • Producing off-line veto triggers from 65 channels (control, ACC, MIC, MAG, V, RADIO, QPD, WFS, AS_DC, SEIS, OPLEV) LSC November 2003 KYF

  4. Using LLO machine alvar (2 x 1 GHz PC) • So far 50 % of L1 S2 locked segments (~two weeks) • Should be finished before December • Need more computing resources on site to run off-time DMT jobs!!! LSC November 2003 KYF

  5. LSC November 2003 KYF

  6. 50 % of L1 S2 data: (*): AS_I included LSC November 2003 KYF

  7. Studying veto efficiency on triple coincidence off-time WaveBurst triggers • L1 time shifted relative H1H2 • Gap: time between each WaveBurst trigger and the nearest in time existing WaveMon trigger • Negative gap: Veto! LSC November 2003 KYF

  8. WaveBurst trigger to nearest WaveMon veto gap distribution: (all 65 channels except AS_I) LSC November 2003 KYF

  9. Veto efficiency vs. dead time fraction (with and without AS_I) LSC November 2003 KYF

  10. Frequency limit on WB triggers: LSC November 2003 KYF

  11. Confidence limit on WB triggers: LSC November 2003 KYF

  12. Triple coincident (3 IFOs) off-time WaveBurst triggers vetoed by L1 WaveMon triggers (50 % of S2, red all WB, blue vetoed WB): Veto SNR 4.0, e=14.1 % LSC November 2003 KYF

  13. Summary • Dead time fraction 0.5-1.0 % without AS_I • L1 veto efficiency 10-17 % • Plans • Run WaveMon on H1, H2 data • Apply glitchMon data to WaveBurst triggers LSC November 2003 KYF

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