Maintenance will be performed on git.ligo.org, containers.ligo.org, and docs.ligo.org on Tuesday 25 March 2025 starting at approximately 8:30am PDT. It is expected to take around 30 minutes and there will be several periods of downtime throughout the maintenance. Please address any comments, concerns, or questions to the helpdesk.
# Set to "None" if you do not want a channel suffix
ChanSuffix:None
# Data sink should be set to frames or lvshm
DataSink:frames
#################################################
# If writing to shared memory use these options #
#################################################
OutputSHMPartition:LHO_hoft
BufferMode:2
# Use this to approximate the frame size (in bytes) when writing to shared memory
FrameSize:405338
NumBuffers:10
###############################################
# If writing to frame files use these options #
###############################################
FrameType:H1GDS_TEST
[CalibrationConfigurations]
IFO:H1
# Set calibration mode to Full or Partial
CalibrationMode:Partial
ComputeCalibStateVector:Yes
[DebuggingConfigurations]
# If you want to write a pipeline graph, provide the graph name. Otherwise, set name equal to None
PipelineGraphFilename:None
Verbose:Yes
# Turn this on to write data presentation timestamps and real-time unix timestamps to file at the beginning and end of the pipeline, to measure latency
# Length in seconds of low-pass FIR filter used in demodulation of the calibration lines
DemodulationFilterTime:20
# Time (in seconds) to smooth out \kappas with a median-like method
MedianSmoothingTime:128
TDCFAveragingTime:10
#If set to yes, bad computed kappas will be replaced by the previous computed median in the running median array. Otherwise, they are replaced with the default value
# Sample rate at which to compute CALIB_STATE_VECTOR
CalibStateSR:16
# Sample rate of control channel
# Should be 16384 if using DARM_CTRL and 4096 if using DELTAL_CTRL
CtrlSR:4096
# Sample rate of ODC channel
ODCSR:16384
# Sample rate of TST excitation channel
TSTExcSR:512
# Sample rate of PUM excitation channel
PUMExcSR:512
# Sample rate of UIM excitation channel
UIMExcSR:512
# Sample rate of coherence channels
CohSR:16
# Sample rate for the EPICS reference channels
EPICSRefSR:16
# Sample rate for power lines channel
PowerLinesChannelSR:1024
# Sample rates at which transfer functions will be computed and witness channels will be filtered, given as a semicolon-separated list, e.g., 2048;2048;512;2048. This must be given if WitnessChannelList is not None, and it must be the same length.
WitnessChannelSR:2048;2048
# Sample rates at which to compute and record TDCFs
ComputeFactorsSR:16
RecordFactorsSR:16
[Bitmasks]
ObsReadyBitmask:4
ObsIntentBitmask:2
CBCHWInjBitmask:16777216
BurstHWInjBitmask:33554432
DetCharHWInjBitmask:67108864
StochHWInjBitmask:8388608
[PipelineConfigurations]
BufferLength:1.0
FrequencyDomainFiltering:No
Dewhitening:No
# Latency of all filtering/averaging/median processes (other than calibration model filters) as a fraction of filter length. Value should be set between 0.0 and 1.0.
# Remove the DC component from the residual and control channels before filtering
RemoveDC:No
# Subtract the calibration lines from the h(t) spectrum
RemoveCalLines:Yes
# Subtract the power lines from the h(t) spectrum
RemovePowerLines:Yes
#########################################
# Options for running noise subtraction #
#########################################
# Amount by which frequency of power lines varies with time
PowerLinesFreqVar:0.02
# Time over which to average the transfer function between the power mains witness channel and h(t) at 60 Hz and harmonics
PowerLinesTFAveragingTime:128
#######################################
# Options for broadband noise removal #
#######################################
# The length in seconds of the fast Fourier transforms used to compute transfer functions between witness channels and h(t). The fft's are windowed with Hann windows and overlapped.
WitnessChannelFFTTime:4.0
# The number of ffts to take before averaging the witness -> h(t) transfer functions calculation. The average is taken after the ratio h(f) / witness(f).
NumWitnessFFTs:1800
# Sets the minimum number of FFTs necessary to produce the first transfer functions and clean data after data flow starts.
MinWitnessFFTs:400
# The length in seconds of the filters applied to the witness channels before subtracting from h(t)
WitnessFIRLength:0.5
# The frequency resolution of the filters applied to the witness channels before subtracting from h(t). It can be advantageous to lower the frequency resolution in order to average over excess noise.
WitnessFrequencyResolution:1.0
# List of minima and maxima of frequency ranges where the Fourier transform of h(t) will be replaced by a straight line in the calculation of transfer functions between witness channels and h(t) for noise subtraction. Semicolons separate lists for different sets of witness channels. If no notches are desired, use zeros, e.g., \'0;0;0\'. Here is an example using the expected format: \'495.0,515.0,985.0,1015.0;59,60,119,121;0\' This can be useful, e.g., if there are loud lines in the signal that are not present in the witness channels.
# The amount of time after transfer functions between witness channels and h(t) are finished to begin the calculation of the next set of transfer functions
WitnessTFUpdateTime:3600
# If lock-loss lasts at least this many seconds, transfer functions will revert to those computed at the beginning of a lock stretch. Set to zero to disbale.
CriticalLockLossTime:1800
# The amount of time to use to taper in newly computed FIR filters for witness channels being used for noise subtraction.
WitnessFilterTaperTime:10
# If writing transfer functions to file, this sets the name. If transfer functions should not be written to file, this should be set to None
WitnessTFFilename:None
# Should the transfer function calculation use a median? If not, an average (mean) is used.
WitnessTFUseMedian:Yes
###############################
# Options for HOFT_CLEAN bits #
###############################
# The amount of data from h(t) and cleaned h(t) that is used to compute and compare the rms. This comparison between cleaned and uncleaned h(t) determines whether the HOFT_CLEAN bits of the calibration state vector are on or off.
CleaningCheckRMSTime:20.0
# Minimum of a range of frequencies in which we expect line/noise subtraction to be impactful. The HOFT_CLEAN_LOWFREQ_OK bit of the calibration state vector is determined based on whether rms of the cleaned data is less than that of uncleaned h(t) in this range.
CleaningCheckRangeLowMin:15
# Maximum of a range of frequencies in which we expect line/noise subtraction to be impactful. The HOFT_CLEAN_LOWFREQ_OK bit of the calibration state vector is determined based on whether rms of the cleaned data is less than that of uncleaned h(t) in this range.
CleaningCheckRangeLowMax:40
# Minimum of a range of frequencies in which we expect line/noise subtraction to be impactful. The HOFT_CLEAN_MIDFREQ_OK bit of the calibration state vector is determined based on whether rms of the cleaned data is less than that of uncleaned h(t) in this range.
CleaningCheckRangeMidMin:100
# Maximum of a range of frequencies in which we expect line/noise subtraction to be impactful. The HOFT_CLEAN_MIDFREQ_OK bit of the calibration state vector is determined based on whether rms of the cleaned data is less than that of uncleaned h(t) in this range.
