LIGO-G050197LSC Collab. Mtg, LHO, August 16,20051 S4 Data Quality & S5 Preview John Zweizig LIGO/Caltech.

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LIGO-G050197LSC Collab. Mtg, LHO, August 16,20051 S4 Data Quality & S5 Preview John Zweizig LIGO/Caltech

LIGO-G050197LSC Collab. Mtg, LHO, August 16,20052 S4 DQ Segment Overview Currently version 7 segments »V0 raw locked segment list. »V1 - V4 prepared at the end of each week of running »V5 - V7 created as new info available »~40 segment types defiend for S4 (new record!) »Segments added by hand (thanks Keith) – This will change? » Contents (classification) »No Data / Not Science run. »IFO not working »Injections (junk we put there) »Physical environment (junk from outside) »Noise seen only in GW channel (junk from unknown source)

LIGO-G050197LSC Collab. Mtg, LHO, August 16,20053 Missing Data Segments No data - can’t analyze it L1 losses were from power loss February 21? Out_Of_Lock – artifact from power failure (segment prior to power failure lasted until next recoreded lock loss) Segment FlagH1H2L1 No_Data No_Rds Out_Of_Lock Outside_S

LIGO-G050197LSC Collab. Mtg, LHO, August 16,20054 IFO Not Working These flags are IFO problems with symptoms independent of LSC channels. Adc overflows as counted by FE processors – Veto! H1/H2 not both up – Likely optical crosstalk – Veto! TCS_Server - Unstable Laser - Segment FlagH1H2L1 ADC_Overflow H1UP_H2Unlocked H2UP_H1Unlocked TCS_Servo Unstable Laser

LIGO-G050197LSC Collab. Mtg, LHO, August 16,20055 Injections (intended…) Injection_Burst, Injection_Inspiral, Injection_PulStart – Injected transient signals. Injection Stochastic – Increased noise Segment FlagH1H2L1 Calib_Line_Dropout Calib_Line_V Calib_Line_V03_1sec Calib_Line_V03_60sec Injection_Burst Injection_Inspiral Injection_PulStart Injection_Stochastic

LIGO-G050197LSC Collab. Mtg, LHO, August 16,20056 Injections (or not intended) Calib_Line_Dropout – dropouts cause glitches in GW channels Calib_Line_V01, Calib_Line_V03_1sec, Calib_Line_V02_60sec calibration lines missing or low.

LIGO-G050197LSC Collab. Mtg, LHO, August 16,20057 Physical Environment Segment FlagH1H2L1 Acoustic Elevated Dust Dust_Elevated Dust_High High_Microseism Jet300 0 Seismic_0.4_ Seismic_0.8_ Seismic_0.9_ Seismic_1.8_ Seismic_2_ Wind Wind_Over_20MPH Wind_Over_30MPH

LIGO-G050197LSC Collab. Mtg, LHO, August 16,20058 Physical Environment (cont’d) Jet, High_Microseism culled from e-Log Seismic » – untuned combination of seismometers. »2-20 – larger band » , , – Band and seismometers selected around suspension resonances Dust – logs, Dust_Elevated (low thresh), Dust_High (hi thresh) Wind »Wind – Elog? »Wind_20MPH - all LHO weather stations, max 4s slice > 20MPH. »Wind_30MPH – not in v7. Higher thresholds (>35MPH in End, Mid) Acoustic, untuned combination of all mics in Hz band »Isct4_mic – promising veto. Light Dips – not in v7

LIGO-G050197LSC Collab. Mtg, LHO, August 16,20059 LSC-Based Segments All flags in this class are unsafe from the standpoint of self-vetoing of GW signals and should not be used in event-based (burst, inspiral) analyses. Segment FlagH1H2L1 120Hz_UpConversion H1H2_Coherence High_Pixel_Fraction_1kHz High_Pixel_Fraction_2kHz

LIGO-G050197LSC Collab. Mtg, LHO, August 16, LSC-Based Segments (cont’d)

LIGO-G050197LSC Collab. Mtg, LHO, August 16, Plans for S5 Segments to be generated on-line »DMT monitors, scripts, online analysis to generate first draft segments »Provision for later manual editing or automated rerunning of segment generation processes. »DMT interface will be enhancement of existing Segment API New segment database. »Extrapolation of S4 mySql segment database » »Specification provides for: –Multiple versions of each segment type –One continuously updated version. –On/off segments –Replacing / reverting segments