Omega-scan

Installation

• install gwdetchar package on conda by using igwn

  • $ wget "https://computing.docs.ligo.org/conda/environments/linux/igwn-py37.yaml"
    $ conda env create -n igwn-py37 --file igwn-py37.yaml

How to use

• gwdetchar-omega is the command line interface of Omega-scan

  • Usage: (Following command works only on k1sum0 and k1sum1.)

    > gwdetchar-omega -i K1 -o output_directory -f config_file gpstime

  • All figures and html files are generated under the output_directory

  • Example of config_file

    [IMC]
    name = Omega-scan (IMC)
    q-range = 1,100
    frequency-range = 16,512
    resample = 4096
    frametype = K1_C
    duration = 4
    fftlength = 1
    max-mismatch = 0.2
    snr-threshold = 10
    always-plot = True
    plot-time-durations = 1,2,4
    channels = K1:IMC-MCL_SERVO_OUT_DQ
               K1:IMC-CAV_ERR_OUT_DQ
               K1:IMC-CAV_TRANS_OUT_DQ

• TY prepared a GUI of Omega-scan.
  • It can be launched from MEDM.

  • Sitemap -> Commissioning -> Glitch pipeline -> Omega-scan

• (2021/04/03) Yuzurihara confirmed the following configuration works now

  • Each parameters are explained in config.py (gwdetchar-omega)

  • [IMC]
    name = Omega-scan (IMC)
    q-range = 1,100
    frequency-range = 16,512
    resample = 4096
    duration = 4
    fftlength = 1
    max-mismatch = 0.2
    snr-threshold = 5
    always-plot = True
    plot-time-durations = 1,2,4
    channels = K1:IMC-CAV_TRANS_OUT_DQ
               K1:IMC-CAV_REFL_OUT_DQ

Code modification for KAGRA

• gwdetchar-omega gets data through NDS or NDS2 server and NDS/NDS2 servers are registered on nds2.py.

• TY added KAGRA's NDS server to the list on nds2.py

  • --- /home/controls/opt/summary-2.7/lib/python2.7/site-packages/gwpy/io/nds2.py.bak   2018-10-30 20:33:13.858464000 +0900
    +++ /home/controls/opt/summary-2.7/lib/python2.7/site-packages/gwpy/io/nds2.py       2019-03-01 08:41:37.741019590 +0900
    @@ -59,6 +59,7 @@ DEFAULT_HOSTS = OrderedDict([
         ('V1', ('nds.ligo.caltech.edu', 31200)),
         ('C1', ('nds40.ligo.caltech.edu', 31200)),
         ('C0', ('nds40.ligo.caltech.edu', 31200)),
    +    ('K1', ('k1nds0.kagra.icrr.u-tokyo.ac.jp', 8088)),
     ])
     

Links

• Omega scans

• config.py (gwdetchar-omega)