Satellites are critical infrastructure for the underpinning of modern economic activities such as communications, accurate position-finding, and weather forecasting. Assets in space can be damaged or destroyed by space weather – the hostile electromagnetic and cosmic ray conditions produced by Solar activity (such as Coronal Mass Ejections, CMEs). Early warning and preparedness are essential for limiting the effects of space weather impacts. However, there are still substantial gaps in our understanding of CME structure, behaviour and forecasting which affect current early-warning capabilities and overall preparedness of various vulnerable industry sectors. This project used real time space weather monitoring and forecasting resources to establish the launch and trajectories of CMEs. The University of Tasmania’s (UTAS) radio telescopes were used to observe the two-way communications link of spacecraft before, during and after the transit of a CME event which was emitted on 15.08.2021. The successful detection of the transiting CME was inferred from the spacecraft signal Doppler noise (which increased up to three times pre-CME magnitudes), the signal phase residuals (which increased up to 10 times their previous magnitude), and the residual spectral power density (which increased by a factor of 104 compared to typical ambient solar wind conditions). All three metrics displayed the same ordered hierarchy over the observation epochs, so it is highly likely that the changes in these parameters are due to the same cause - the transit of the CME across the signal ray path.