Spectrum with three interferometers¶

$ gwpy-plot spectrum \
    --chan H1:GDS-CALIB_STRAIN L1:GDS-CALIB_STRAIN \
    --chan V1:Hrec_hoft_16384Hz \
    --start 1187008866 \
    --duration 32 \
    --xmin 10 \
    --xmax 4000 \
    --interactive