Analysis of L 1 Wave Mon S 2

Analysis of L 1 Wave. Mon S 2 veto triggers Ken Yoshiki Franzen University of Florida LIGO-G 030611 -00 -Z LSC November 2003 KYF 1

Outline: » » » Introduction Data processing status Produced veto triggers Veto of Waveburst triggers Summary and plans LIGO-G 030611 -00 -Z LSC November 2003 KYF 2

l Wave. Mon: Time frequency analysis in the wavelet domain l www. phys. ufl. edu/LIGO/bursts for documentation l Producing off-line veto triggers from 65 channels (control, ACC, MIC, MAG, V, RADIO, QPD, WFS, AS_DC, SEIS, OPLEV) LIGO-G 030611 -00 -Z LSC November 2003 KYF 3

l Using LLO machine alvar (2 x 1 GHz PC) l So far 50 % of L 1 S 2 locked segments (~two weeks) l Should be finished before December l Need more computing resources on site to run offtime DMT jobs!!! LIGO-G 030611 -00 -Z LSC November 2003 KYF 4

LIGO-G 030611 -00 -Z LSC November 2003 KYF 5

50 % of L 1 S 2 data: SNR Number of triggers Dead time fraction (%) 4 145499 (432452) 0. 9 (5. 0) 5 97004 (231588) 0. 6 (3. 0) 6 68576 (118867) 0. 5 (1. 5) (*): AS_I included LIGO-G 030611 -00 -Z LSC November 2003 KYF 6

l Studying veto efficiency on triple coincidence off-time Wave. Burst triggers l L 1 time shifted relative H 1 H 2 l Gap: time between each Wave. Burst trigger and the nearest in time existing Wave. Mon trigger l Negative gap: Veto! LIGO-G 030611 -00 -Z LSC November 2003 KYF 7

Wave. Burst trigger to nearest Wave. Mon veto gap distribution: (all 65 channels except AS_I) LIGO-G 030611 -00 -Z LSC November 2003 KYF 8

Veto efficiency vs. dead time fraction (with and without AS_I) LIGO-G 030611 -00 -Z LSC November 2003 KYF 9

Frequency limit on WB triggers: LIGO-G 030611 -00 -Z LSC November 2003 KYF 10

Confidence limit on WB triggers: LIGO-G 030611 -00 -Z LSC November 2003 KYF 11

Triple coincident (3 IFOs) off-time Wave. Burst triggers vetoed by L 1 Wave. Mon triggers (50 % of S 2, red all WB, blue vetoed WB): Veto SNR 4. 0, e=14. 1 % LIGO-G 030611 -00 -Z LSC November 2003 KYF 12

l Summary » Dead time fraction 0. 5 -1. 0 % without AS_I » L 1 veto efficiency 10 -17 % l Plans » Run Wave. Mon on H 1, H 2 data » Apply glitch. Mon data to Wave. Burst triggers LIGO-G 030611 -00 -Z LSC November 2003 KYF 13