def METHOD_NAME(psd):
    """Test for :func:`gwpy.astro.sensemon_range_psd`
    """
    fisco = astro.range._get_isco_frequency(1.4, 1.4).value
    frange = (psd.frequencies.value < fisco)
    r = astro.sensemon_range_psd(psd[frange])
    assert isinstance(r, FrequencySeries)
    utils.assert_quantity_almost_equal(
        trapz(r, r.frequencies) ** (1/2.),
        TEST_RESULTS['sensemon_range'],
    )
    assert r.f0.value > 0