- P44A-09: Simulating a Combined Active-Passive, Dual-Frequency Radar Reconstruction of Europa's Ionospheric Profile
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Adhitya Sripennem, University of Colorado at Boulder (First Author, Presenting Author)
Sean Peters, University of Colorado at Boulder
Robert Marshall, University of Colorado at Boulder
Jupiter's moon Europa has a thin layer of electrically charged particles called an ionosphere. These charged particles are plotted to create electron density profiles. Scientists have very limited knowledge of Europa's ionosphere from a couple of spacecraft flybys. Using data from those missions, we create cleaner day and night profiles of the ionosphere for our simulation.The simulation considers two frequencies: one that comes from natural radio bursts from Jupiter and another from the spacecraft's own system. By comparing how both signals change as they travel through the ionosphere, we can create detailed maps showing where the charged particles are located, without needing a separate instrument to do the same task.
This research proves the method works and can be used with any future spacecraft visiting Europa (or other planets with similar atmospheres) as long as receiver equipment is onboard, which is standard on almost all spacecraft nowadays. This approach makes studying planetary atmospheres cheaper and uses fewer resources.
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