# This file contains a list of "bad-flags", with the numerical value in the # data quality bitmask. The numerical value is expressed as a power of 2. # The flags are used in the segment log files. For example: # To mark all of a segment as bad: # *BAD(MICH_FILT) # To mark the first part of a segment as bad: # *BAD(OUTSIDE_S3) -729273613 # To mark the last part of a segment as bad: # *BAD(OUTSIDE_S3) 734367613- # To mark an interval within a segment as bad: # *BAD(MISSING_RAW) 733121837-733121862 # # bad-flag bitval description # # Flags added for version 1 segments # OUTSIDE_S4 2^0 Interval outside of official S4 run ADC_OVERFLOW 2^1 Overflow detected in AS_Q or close auxiliary channel INJECTION_INSPIRAL 2^2 Inspiral signal waveforms injected INJECTION_STOCHASTIC 2^3 Stochastic signal waveforms injected (strong) OUT_OF_LOCK 2^4 Interferometer out of science mode DUST 2^5 Dust in vicinity of optical table after human intrusion TCS_SERVO 2^6 Thermal Compensation System servo badly misbehaving 120HZ_UPCONVERSION 2^7 Strong upconversion of low-frequency noise near 120 Hz HIGH_MICROSEISM 2^8 Very high micro-seismic noise # # Flags added for version 2 segments # INJECTION_PULSTART 2^9 Start of pulsar signal injection (possible transient) INJECTION_BURST 2^10 Burst signal waveforms injected HIGH_PIXEL_FRACTION_1KHZ 2^11 Evidence of correlated pixels in BurstMon time-wavelet plane up to 1 kHz HIGH_PIXEL_FRACTION_2KHZ 2^12 Evidence of correlated pixels in BurstMon time-wavelet plane up to 1 kHz CALIB_LINE_DROPOUT 2^13 Short dropout of injected calibration line (can cause transients in GW channel) # # Flags added for version 4 segments # WIND 2^14 Very high winds creating seismic disturbances JET 2^15 Jet aircraft overhead UNSTABLE_LASER 2^16 Laser stability questionable NO_DATA 2^17 Gap in raw data NO_RDS 2^18 Gap in reduced data set # # Flags added for version 5 segments # ACOUSTIC_ELEVATED 2^19 Elevated acoustic noise in the 62-118 Hz band SEISMIC_0D8_2D0 2^20 Elevated seismic noise in the 0.8-2.0 Hz band WIND_OVER_20MPH 2^21 Windspeed greater than 20 miles-per-hour H1UP_H2UNLOCKED 2^22 H1 in science mode but H2 unlocked (cross-coupling worry) H2UP_H1UNLOCKED 2^23 H2 in science mode but H1 unlocked (cross-coupling worry) H1H2_COHERENCE 2^24 Evidence for broadband coherent noise in H1 and H2 (use with caution!) SEISMIC_0D4_0D9 2^25 Elevated seismic noise in the 0.4-0.9 Hz band SEISMIC_0D9_1D1 2^26 Elevated seismic noise in the 0.9-1.1 Hz band SEISMIC_1D8_2D4 2^27 Elevated seismic noise in the 1.8-2.4 Hz band CALIB_LINE_V01 2^28 No calibration line or line strength out of range SEISMIC_2_20 2^29 Seismic transient in the 2-20 Hz band # # Flags added for version 6 segments # CALIB_CHISQR_V1 2^30 Bad chi**2 for GEO calibration PRELOCKLOSS_10 2^31 Last 10 seconds before a lock losss PRELOCKLOSS_30 2^32 Last 30 seconds before a lock losss PRELOCKLOSS_60 2^33 Last 60 seconds before a lock losss PRELOCKLOSS_120 2^34 Last 120 seconds before a lock losss CALIB_LINE_V03_60_SEC 2^35 No calibration line or line strength out of range during minute CALIB_LINE_V03_1_SEC 2^36 No calibration line or line strength out of range during second # # Flags added for version 7 segments # AZIMUTH_072_XARM 2^37 Allegro detector aligned with LLO X arm AZIMUTH_162_YARM 2^38 Allegro detector aligned with LLO Y arm AZIMUTH_027_NULL 2^39 Allegro detector aligned with LLO arm bisector DUST_ELEVATED 2^40 Dust levels elevated as seen by monitor near dark port table DUST_HIGH 2^41 Dust levels high as seen by monitor near dark port table # # Flags added for version 8 segments # WIND_OVER_30MPH 2^42 Windspeed greater than 30 miles-per-hour (35 mph at mid/end stations) LIGHTDIP_04PERCENT 2^43 Four percent drop in arm cavity light (defined for H1) LIGHTDIP_05PERCENT 2^44 Five percent drop in arm cavity light (defined for H2 and L1) LIGHTDIP_06PERCENT 2^45 Six percent drop in arm cavity light (defined for H1) LIGHTDIP_07PERCENT 2^46 Seven percent drop in arm cavity light (defined for H2 and L1) LIGHTDIP_10PERCENT 2^47 Ten percent drop in arm cavity light (defined for H2) REF_OSCILLATOR_RESET 2^48 Allegro reference oscillator phase under adjustment NO_CALIB_DATA 2^49 Allegro calibration data not available or calibration unreliable ASDC_HIGH_THRESH 2^50 AS_DC light level higher than high threshold ASDC_MIDDLE_THRESH 2^51 AS_DC light level higher than middle threshold ASDC_LOW_THRESH 2^52 AS_DC light level higher than low threshold # # Flags added for version 9 segments # CALIB_LINE_V04_60_SEC 2^53 No calibration line or line strength out of range during minute CALIB_LINE_V04_1_SEC 2^54 No calibration line or line strength out of range during second INJECTION_STRONG_PULSAR 2^55 Strong pulsar injection (narrow band) # # Flags added for version 10 segments # CALIB_LINE_SAMPLE_DROP 2^56 Single-sample calibration line dropout # # Flags added for version 11 segments # RDS_C04_LX_HFHTDIFF_GT_5_PERCENT 2^57 h(f) vs h(t) difference greater than 5.0 percent RDS_C04_LX_HFHTDIFF_GT_7p5_PERCENT 2^58 h(f) vs h(t) difference greater than 7.5 percent RDS_C04_LX_HFHTDIFF_GT_10_PERCENT 2^59 h(f) vs h(t) difference greater than 7.5 percent RDS_C04_LX_HFHTDIFF_GT_12_PERCENT 2^60 h(f) vs h(t) difference greater than 7.5 percent