Quantification of Errors in the Planetary Atmospheric Profiles Derived From Radio Occultation Measurements

Radio occultation (RO) measurement is an established technique for profiling planetary atmosphere/ionosphere. The accuracy of the derived physical parameters (atmospheric temperature, pressure, and density in lower atmosphere, electron ionosphere) however depends on uncertainty observed frequency robustness retrieval algorithm. objective this paper to identify all possible sources errors RO experiments their propagation retrieved atmospheric profiles. Quantification due assumptions used algorithm has also been attempted. We data from one-way downlink single-frequency (X-band) radio signals, transmitted science payload onboard Akatsuki spacecraft orbiting Venus received at Indian Deep Space Network, Bengaluru, India study. followed standard signal processing analyze raw data. Atmospheric profiles were using basic concept geometrical optics. Possible are identified magnitude range quantified. obtained discussed. These results would be useful while devising future explorations.