Figure 2: Polarization-averaged power response of the Doppler system to a gravitational wave signal
as a function of Fourier frequency. Earth-spacecraft geometry for Cassini’s gravity wave observations
in 2000 – 2001 has been used. Blue: response from the direction of Virgo (
0.104). Black:
response to randomly polarized sources distributed isotropically on the celestial sphere. Red: response
from the direction of the galactic center (
0.9932). Note that in the case of waves from the
Galactic center, the three-pulse response function ([52] and Eq. (1*)) for the Cassini geometry is
dominated by two pulses separated by only about 0.00034 T2 
20 s. This gives rise to the strong
low-frequency suppression and the approximate sin2 modulation for the Cassini GWE1 geometry
and GWs from the galactic center. BepubtkUpdateB2Corrected sign error for 
to galactic center
in Figure 2.
0.104). Black:
response to randomly polarized sources distributed isotropically on the celestial sphere. Red: response
from the direction of the galactic center ( 0.9932). Note that in the case of waves from the
Galactic center, the three-pulse response function ([52] and Eq. (1*)) for the Cassini geometry is
dominated by two pulses separated by only about 0.00034 T2 20 s. This gives rise to the strong
low-frequency suppression and the approximate sin2 modulation for the Cassini GWE1 geometry
and GWs from the galactic center. BepubtkUpdateB2Corrected sign error for to galactic center
in Figure 2.