A team of Worcester Polytechnic Institute (WPI) undergraduates has designed a supporting satellite mission to launch and communicate with the LEAVES probes, which are designed to study Venus’ atmosphere.
We reported before about a NIAC-funded project known as the Lofted Environment and Atmospheric Venues Sensors (LEAVES) mission to study Venus ’ atmosphere. While the technology behind the idea is still under development, it has already inspired a team of Worcester Polytechnic Institute (WPI) undergraduates to develop a supporting satellite mission to launch and communicate with the leaves. Their paper, part of their B.S. Thesis, details how to use these new sensors and the challenges ahead.
As a refresher – the main unique selling point of LEAVES is that they are inexpensive ways to collect data about Venus’ atmosphere – at least from the height of about 100km down to 30km, where a lot of interesting atmospheric physics is taking place. They are designed without a propulsion system and, as such, glide down on their own accord, sending back data about the local pressure, temperature, atmospheric composition, and the probe’s orientation via an inertial measurement unit like those used on drones. They aren’t intended to last long, but the short time they will be present in the atmosphere could provide insights into several outstanding questions about Venus, such as what compound is absorbing near-ultraviolet light in the upper atmosphere or the local carbon monoxide concentration. However, their distribution over the planetary surface is a critical part of any such effort – which is where the mission design from the team at WPI comes in.Their mission design revolves around two spacecraft joined together for launch and approach to Venus but then breaking apart into wildly different orbits. One of them, Demeter, is responsible for launching the LEAVES. The other, Persephone, is named after Demeter’s daughter, whom Venus’ Greek equivalent had taken away to the underworld. It is left at a higher orbit and responsible for transmitting the data collected by the LEAVES back to Eart
VENUS LEAVES SPACE MISSIONS ATMOSPHERIC SCIENCE WORCESTER POLYTECHNIC INSTITUTE
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