# 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
#
INVALID_TIMING         2^0  Timing believed to be unreliable
NO_DATA                2^1  Raw data missing (DAQ dropout)
NO_RDS                 2^2  RDS missing (technical
NO_CALIB_LINE_V01      2^3  Calibration line turned off (version 1 DQ segments)
#
# Flags added for version 2 segments
#
NO_CALIB_LINE_V02      2^4  Calib line not visible (version 2 DQ segments)
NO_EXCITATION_V02      2^5  Excitation line turned off (version 2 DQ segments)
#
# Flags added for version 3 segments
#
SEISMIC_ELEVATED       2^6  Seismic noise elevated in 3-10 Hz band
SEISMIC_HIGH           2^7  Seismic noise high in 3-10 Hz band
FE_SYNCH_WARNING       2^8  Elevated counts of front-end synchronization errors
FE_SYNCH_ERROR         2^9  High counts of front-end synchronization errors
DAQ_OVERFLOW           2^10 Data acquisition overflow
OUTSIDE_S3             2^11 Interval outside of official S3 science run
DUST                   2^12 Elevated dust levels at dark port table after human intrusion
DCU_TIMING_OFFSET      2^13 Evidence for small timing offset in a local DCU crate - probably unimportant
UNLOCKED               2^14 Interferometer out of lock (last second or two of science mode segment)
PRELOCKLOSS_10         2^15 Last 10 seconds before a lock losss
LIGHTDIP               2^16 Signficant dip in arm cavity light (5% for H1/H2, 15% for L1)
ACOUSTIC_ELEVATED      2^17 Elevated acoustic noise in the 62-100 Hz band
AIRPLANE               2^18 Acoustic noise in the 62-100 Hz band likely due to a nearby airplane
SEISMIC_TRANSIENT      2^19 Very large (9-sigma) seismic transient in the 2-20 Hz band
#
# Flags added for version 4 segments
#
CALIB_LINE_V03         2^20 No calibration line or line strength out of range
INJECTION_STOCHASTIC   2^21 Injection of stochastic background signal
#
# Flags added for version 5 segments
#
HUMAN_INTRUSION        2^22 Someone in LIGO LVEA or GEO central building
NON_STANDARD_DETUNE    2^23 Non-standard GEO signal-recycling detuning frequency
#
# Flags added for version 6 segments
#
NONSTATIONARY_PSD_H1L1 2^24 Non-stationary noise seen in H1 or L1 PSD in stochastic analysis
NONSTATIONARY_PSD_H2L1 2^25 Non-stationary noise seen in H2 or L1 PSD in stochastic analysis