================= Range check task ================= This task is designed to provide the information of inspiral range and the sensitivity of the interferometer around the triggered time. ------------ Requirements ------------ This task requires the following packages that may not be included in the requirements list for `dqrtasks`: * `gwpy` * `gwdetchar` ----------- Description ----------- This task will provide the information of inspiral range of the interferometer around the triggered time. In default, the task will monitor the 512 seconds data before the trigger time. The task performs following steps: 1. Find the locked segment just before the triggered time (duration is selected by `window` variable, in the example bloe, 500 s), and resample the data. Due to reampleing, we can reduce the computational costs. In the example, we use the resample frequency of 4096 Hz, similar to standard CBC search. 2. Evaluate the time series of inspiral range for several combination of CBC events(1.4-1.4, 10-10, 30-30Msun). Compute the average value of inspiral range (shown in the table). These will be done by `range_timeseries` in gwpy package. The maximum frequency for the inspiral range is properly computed in the function, depending on the component mass. 3. Evaluate the PSD from same data for complementary information. To see the stability of sensitivity, the task uses two kinds of data with different durations such as 512 seconds and 8 seconds before the trigger time. Note that the `fftlength` is same as step 2, such as 4 seconds. The task will not provide p-value. This is an informative task. -------------------- Example command-line -------------------- This is the help message: .. command-output:: dqr-rangecheck --help -------------- Example config -------------- .. code-block:: ini [rangecheck] description = range check librarian = derek.davis@ligo.org include_in_dag = True tier = 1 question = Is there a high significance that a glitch was present overlapping the candidate based on strain info? executable = dqr-rangecheck request_memory = 400MB arguments = "${t_0} -v --output-dir ${outdir} --channel L1:DCH-CLEAN_STRAIN_C02 --frame-type L1_CLEANED_HOFT_C02 --long-seg-len 512 --short-seg-len 8 --fft-len 4 --overlap 2 --psd-var-stride 0.1 --psd-method median --psd-window hann --resample_rate 4096 --window 500 --padding 4 --f-low 10 --f-high 1000" -------------------- Example results page -------------------- An example page for GW170817 can be found `here <./_static/task_examples/rangecheck/index.html>`_. .. raw:: html